1.5ML earthquake felt in Blackpool

People living in Blackpool and nearby villages reported an earthquake at 7.36pm on Friday.

Source: British Geological Survey

According to the British Geological Survey (BGS), the tremor, at a depth of 2km, measured 1.5 on the local magnitude (ML) scale.

The epicentre was near the village, of Weeton, on the eastern edge of Blackpool.

The BGS said the tremor was felt in Blackpool, Little Plumpton, Weeton and Westby.

One report to the BGS described “a noise like a train coming near”.

Others said: “several neighbours heard it”, “dogs were disturbed” and “computer and cabinets shook”.

The location of the tremor is between Preese Hall and Preston New Road, sites where hydraulic fracturing for shale gas caused earthquakes in 2011, 2018 and 2019.

Source: British Geological Survey

The BGS reported 134 seismic events caused by fracking at Preston New Road in 2019 and more than 50 in 2018.

A 2.9ML fracking-induced earthquake on August bank holiday Monday in 2019 later led to a moratorium on the process. This was lifted briefly by the Liz Truss administration in September 2022 but reinstated by Rishi Sunak in October.

58 replies »

  1. Some may be tempted to conclude the 2km depth of this seismic event suggests a link to the previous fracking induced
    2.9 ML earthquake of 2019.
    However, whatever the cause, the particular geology of the Fylde is clearly not safe for fracking.

    • A fair comment, Dr Frank.

      I am tempted . Not only to consider a link to all the2018/2019 events, but indeed the 2011 events induced by Preese Hall activity. No sensible person would do otherwise. I hope our MP and the BGS are sensible.

      • Absolutely Alan.
        The PNR industrial site should now be being restored to agricultural land, in compliance with the agreed planning deadline.
        Fylde locals are understandably increasingly concerned that the industry may not comply with this.
        Following this latest seismic event, we do hope that our local MP will apply further political pressure for Cuadrilla to immediately restore and leave now.

        • I did contact him to ask if he would be pursuing the BGS to encourage them to investigate the potential link between this latest event and fracking. As far as I know there has been no work done on the potential of fracking-induced changes to underlying geology resulting in further seismic events apart from the obvious huge number of minor incidents after and during PNR fracking. The establishing of a link, whether from Preese Hall or PNR, with the Feb 3 event would have serious potential and positive consequences for the success of our wish to ban fracking not only in the Fylde but everywhere.

      • LOL!

        I recall back in April 2011, Brian Baptie, seismic pro at the BGS, assured us after the 1st April tremor that this was due to tectonic uplift dating back to the Ice Age. Not that IS a “fair aftershock”!

        Given the assumption the Fylde’s geology had been affected by the fracking activity in 2011 and 2018/2019, as it undoubtedly was, it would not surprise me in the least if the latest event were related. It would surprise me far more if any expert now said it was without doubt the event was unrelated to fracking.

          • Obviously you must be right Eli Froth.

            In this area the BGS database before fracking shows only one onshore earthquake since records began (and that was in the early 90s). So, why would anyone think there might be a link between the fracking earthquake clusters and this recent event, which was directly in between the two sites that have provoked earthquakes since 2011? It surely must be a conspiracy. I bet Just Stop Oil arranged it!

            So that leaves us pondering Professor Mike Stephenson’s advice that “”What you have to be able to do when you decide you want to hydraulic fracture is make sure there are no faults in the area. That’s really very very important”.

            If this recent tremor isn’t fracking related then it’s evidence of the local faulting we all know about, so fracking isn’t a great idea, whether we believe in Cuadrilla’s unicorns or not.

            Either way the frackers are toast.

      • So, you are a geology expert Eli Goth ?
        This ”unicorn” has been answered below by the respected expert, Prof. David Smythe :

        This most recent 1.5 ML seismic event ” has occurred in a locality where there have been no such events in the last 40 years, and serves to illustrate the long-term crustal stress changes and potential contamination that can result from short-term and incompetent operations like those of Cuadrilla.”

        Concerned Fylde residents no longer require any more uninformed pro-industry opinions of non-locals, Eli-Goth.

        • The Dinosaurs died out 65 million years ago ‘Dr’ of Geology frank. Does that mean the earth will or will not, be hit by another meteorite?? in the next 65 million years??

          • ‘Professor’ of Geology Eli Goth,

            Regarding the real fears of Fylde residents about fracking induced earthquakes:
            In addition to the more reliable expert opinion of Prof. Smythe, which contradicts your own uninformed pro-fracking views.
            You should also be aware of this publication:
            ‘3D seismic interpretation and fault slip potential analysis from hydraulic fracturing in the Bowland Shale, UK’
            Sirawitch Nantanoi, Germán Rodríguez-Pradilla, James Verdon
            Petroleum Geoscience, Volume 28, Issue 2, May 2022,
            DOI: https://doi.org/10.1144/petgeo2021-057
            ” …The faults that induced the largest seismic events in the Preston New Road site, of c. 200 m in length for seismic events of magnitudes below 3.0 (as imaged with a multicomponent, downhole microseismic monitoring array deployed during the hydraulic-fracturing stimulations), could not be identified in the 3D seismic survey, which only mapped fault planes larger than 400 m in length.”

            Also as cited below:
            Regarding the most recent1.5 ML event
            ” ..is there a late triggering effect due to the fluid injection for well stimulation back in 2018/19?”
            Steve Hicks, Seismologist, @ES_UCL @ucl

            No doubt our local Fylde MP will be considering these expert opinions.

            • Ah Verdon, previously aka @TheFracDoctor, the previously passionate biased advocate of fracking, who sold his academic soul and was paid by Cuadrilla at Balcombe to do pseudo science, resulting in the statement inter alia “There is a small but finite risk that hydraulic fracturing for shale gas can trigger felt seismic events”.

              He knew nothing back then 8-10 years ago about Fylde geology, and I wouldn’t trust any report that had his name attached to it, frankly. Or maybe he has come to realise by aligning himself with pro-fracking “scientists” he had made a big mistake and was damaging his career.

              From a brief look at the report referred to, it is clear that the authors could not relate seismic events induced by PNR, to identified faults. But the significant thing is they DID accept that some the faults which had been identified by previous research could be at risk. Potentially critical.

              “The abundance of critically stressed faults in the Bowland Shale likely explains why all wells that have been hydraulically fractured in this formation generated induced seismicity.”

  2. And yet, I seem to recall the fracking industry was at pains to claim that earthquakes of a considerably greater magnitude that took place in the area were akin to a water melon or a bag of shopping being dropped.

  3. Whatever the cause of this event, although it has happened suspiciously close to PNR, the fact remains it was magnitude of 1.5ml and it was widely felt and caused concern to the community. Yet Francis Egan and certain members of the government, Rees Mogg for one, have repeatedly said that we should be expected to tolerate far higher events of 4ML as normal. . Given the number of events Cuadrilla caused whilst not completing even one well, it must be obvious, even to them, that it would be ridiculous to expect any community to accept living in the constant state of anxiety this would generate.

    • Pauline-what is the difference between those “close to PNR” and those who live in Cornwall?

      One lot seem to get very concerned about the same thing that concerns very few in the South West. Maybe there is a concentration of the concerned in one place but not another? Some communities seem to accept seismic activity, even induced, may be okay. Perhaps just relabel as renewable and local concern moves to local acceptance? Maybe high fuel bills also might move the concern? Oh, it just did, according to the tracker survey. Wonder what might concern people more-the removal of their fuel subsidy in April, or a bit more of what the Cornish seem to have no problem with?

      • I’ll tell you this.

        Those of us who lived locally felt our houses shake. Saw cracks appear in our plaster. We KNEW what it was like to suffer the effect of fracking.

        We CARE About ourselves, our neighbours and our environment.

      • What the people of Cornwall is irrelevant. I live in the Fylde and I am concerned. After the recent tragic events in Turkey I would have thought a bit of caution regarding earthquakes wouldn’t go amiss.

            • Risk and reward, reaction. Just think of me as the English Test Match Cricket approach, high risk but entertaining.

              Alternatively, there is the approach of the defensive prod, endless reviews of rules, complaints to the commentators, full application of the precautionary principle- and the dismissals still occur. Meanwhile, the crowds have gone, bored rigid, and the dust and debris blow across the empty grounds.

              Not sure if my high risk approach will bring back the crowds but a reaction at 10.42pm is a start!

  4. A local concerned person has suggested to me that this small earthquake could lie on the Wakepark Fault, a large NE-SE trending fault which I have mapped running just west of Preston New Road. It is of concern that this large fault was never identified by Cuadrilla (nor by the BGS for that matter), although British Gas seems to have identified it -only at depth – as long ago as 1991.
    At first sight the epicentre seems to lie to the east of this fault, but the epicentral location could be inaccurate. Its radial distance from the nearest seismometer station, AQ06 at Thistleton, is well constrained, at about 6-7 km from this station, but all the other five stations shown in the seismogram above are much further away, at 30 km distance or more. This implies that the provisional location given by the BGS could be rather approximate. A relocated position might put it a little further to the NW, so that its hypocentre would then lie on the Wakepark Fault, at around 2 km depth.
    In any case, whatever fault, big or small, that the earthquake lies on, it is feasible to suggest that fluid diffusion over the 3.5 years northwards from Preston New Road since the failed fracking attempts there could account for this earthquake. It has occurred in a locality where there have been no such events in the last 40 years, and serves to illustrate the long-term crustal stress changes and potential contamination that can result from short-term and incompetent operations like those of Cuadrilla.

    • My late Prof. told me if I wrote a report full of could, seems, implies and might, there would be a mighty good chance I would be asked to re-write! Those were the days when facts were required rather than speculation. Such is “progress”??

      However, in the spirit of such, I note Denmark has just authorized CCS in their waters, to be conducted by Ineos, amongst others.

      Could, might, is it feasible, the N.Sea could vanish down the cracks??

      • He should have also told you that to postulate theories, to encourage research to test those theories, was the essential part of scientific research. Pity it seems you learned zilch.

        • I did learn the difference between scientific research and scientific fact, Alan, which may not be everything, but more than yourself, so not zilch.

          Scientific research is a bit like testing, isn’t it? That is one way to scientific fact. You appear to have concluded that very little and limited testing is required to come to a general conclusion. Then, the conclusion would not even seem to have any coherence. Which is usually the outcome, so to be expected. That I disagree with, and I am sure those who wish geo-thermal to proceed in UK will disagree also. Not sure you are wise from your side of the debate to encourage more research and testing of theories. That coin has two sides.

          There are not too many scientists who have not needed to modify a protocol during research that then comes up with a different output than the original. Good job scientists have not given up on fusion-maybe eventually coming up with scientific fact from all the theories?

          • What is the conclusion I have come to? I have come to no conclusions here. You are tilting, as always, at windmills. Straw man. At least you are a little more coherent this morning. As usual your geothermal and fusion remarks are a red herring.

            As regards testing. It is clear that I would advocate use of the precautionary principle rather than cowboy experimentation. As would any sensible person who has had due regard to the evidence so far available. You have no licence to talk about protocols as you are not engaged in scientific research, only, it seems, in trying to discredit others like David Smythe who are trying to get to the bottom of why these unusual events occur.

            • Oh dear Alan, you have now morphed to another Mystic Meg! There is a living to be made from that in Blackpool.
              You have no idea whether I have been involved in scientific research. You are correct I am not currently, you would be incorrect to imply I have not been and know zilch about the subject. You are fabricating that comfort blanket, Alan.

              (Interesting little aside about one research center I worked at. Large house and grounds that had become available as the owner had travelled to USA, got off the ship and just vanished years previously. Precautionary principle might have saved him, but he would also have needed to be a Mystic Meg to apply it. Returned there later in my career after adding marketing to my CV to do some consultancy work for their marketing department, but noted the research center was still functioning.)

              Having seen a geologist post on DoD about his credentials as advisor to a political party, who was unaware of the price of oil passing through the $70/barrel point a while ago, I have every reason to scrutinize what is actually stated, no matter what the qualification.

              The precautionary principle is an excuse that would have prevented about every major scientific development if it had been applied-humanity would not even have got to the stage of using fire! Too dangerous. Leaving the ground? Oh dear, no. Going across oceans? Nope, will only fall off the edge.

              The UK evidence so far available is very sparse and very isolated, Alan. Certainly not enough in my opinion for a blanket moratorium. There would be no significant oil and gas from the N.Sea, particularly the Norwegian side, if your level of precaution had been followed. How do you get across the road? People are actually killed crossing the road, so that should be excluded? Looking at the success rate of energy interconnectors they would be precluded too.

              “The Hicks quote is not really appropriate”. Looks like one conclusion to me Alan. Geothermal and fusion red herrings look remarkably like a couple more

              Never mind, the poison chalice of energy security has been passed to another politician today. I would have advised, based upon the precautionary principle, not to sup from it Grant!

              • Answer my question, just for once in your life and your posts here, rather than raising unjustifiable red herrings. What conclusions have I come to in this thread? I will answer that myself, dispute that if you can. None, regarding the Feb 3rd event.

                As for sparse and isolated evidence, that can hardly be said of upwards of 200 seismic events that in 2018 and 2019 were indisputably induced by Preston New Road fracking, and earlier Preese Hall attempts. That seems more than adequate to justify banning of further fracking in the Fylde. If you can not agree to that I really don’t know what class of person to put you in. I suspect the moderators might remove my top suggestions!

                Fracking in the Fylde is a thing of the past. It is time the idea was dead and buried and serious attention paid as to what happens to the final safe abandonment of wells fracked here. The February 3rd event will reignite this debate and hopefully once and for all lead to the last nail in the coffin of Cuadrilla’s ambition in the Fylde . Get used to it. You have nothing useful to say on this issue, and IMO have said too much for too long. [Edited by moderator]

  5. Just goes to show how common seismic activity is in the UK. It is a routine natural event that occurs hundreds of times every year.

    If you want to see how something unnatural happens from energy exploitation, (allegedly) then I note Pacific Gas and Electric are to go on trial in California for manslaughter following forest fires in 2020, with the claim made that faulty electricity distribution caused the fires and resulted in huge loss of property, and deaths. Hmm, should plonk a moratorium on electricity distribution considering the precautionary principle?! LOL.

    “Some may conclude”, but one would hope a doctor would not, otherwise no need for a consultation, just produce a self diagnosis based on someone’s previous one! On that basis, my expanded waist line is due to pregnancy and not Christmas.

    With Ineos about to start trials on the Siri platform with carbon capture and then a larger scale operation at Acorn, wonder whether that should go ahead, just in case?

      • Do some proper reading, reaction, and then you may react to what is posted. UK. Stated quite clearly, removed by you. Perhaps I need to complain about inaccurate reporting?
        With hundreds spread around the UK every year then it is probable most areas will experience one or two naturally every year. Most areas will not comment that much, a few who want to make something out of it will get into conspiracy theories.

        Duplication, doesn’t make your invalid comment any more valid.

        So, was the recorded event in the early 90’s due or linked to fracking?? Maybe there was another “reason” such as some mythical monster was stirring below ground disturbed by the high concentration of imaginary selenium? That one was so “successful”, there must be more mileage left in it. LOL.

        In terms of probability, if there is one event in the early 1990s and another in 2023, and there are hundreds every year around the country, then it would appear the Fylde was well overdue. According to the quote from Mr. Hicks, your “not in the Fylde” would appear to be wishful thinking, or ignorance, not shared by others, who post about a “return”. So, who has done proper research, you or Mr. Hicks? Based upon your previous, and his qualifications, I go with Mr. Hicks.

        To get traction with a conspiracy theory, then you all need to improve your co-ordination.

        However, based upon previous, from another anti, where the NT would get support for their management and functioning due to the number of NT visitors/members then Sir Jim buying Man. Utd. will undoubtedly mean all those millions of members and supporters will resurrect the duck in order to be able to afford to sign the best players! I can see the attraction of such theories. The reality might be somewhat different. But, then approaching midnight on a Sunday after a few tipples I have all sorts of theories and fantasies.

        • The Hicks comment as quoted (not by refracktion) is ill-advised in using the term “return”. This could, and in my opinion does, indicate a return to movements during and post-fracking. The Fylde has, as Refracktion suggested, been relatively clear of onshore seismic activity. The BGS say quite categorically “The Blackpool region is an area of low seismicity even for the UK.”

          Fatuous comments and false comparisons do little to advance the understanding of what is now, or should be, a subject of scientific investigation rather than attempted point-scoring by those wishing to bury their heads in the sand.

          • [Edited by moderator]

            I certainly would consider Mr. Hicks is more likely to have some basis to his speculation than reaction, and that is my choice.

            Choices are for all of us, Alan. Do I chose to believe the “scientists” who promoted converting cereal into motor fuel as good for the environment, do I believe those who now say oh no it isn’t? Both groups can support their consideration environmentally. Neither can bother to explain the high risk to cost of living and rely upon the public being unaware when the effluent hits the fan. Perhaps their remuneration from each of their studies means they don’t have to be concerned?

              • I am even ashamed of myself for responding to this utter tripe. [Edited by moderator] If we do not do that, we are ourselves guilty of conspiring with them.

            • No. I have respect for the BGS. It is their opinion I want on this. Who is the one I am bigging up, in your poorly expressed language? You are 100% out of order. Nothing unusual there, from what I have seen. Once again you accuse others with your [edited by moderator] accusations to distract the argument. I am sad for you.

              If you want to justify your argument, please enlighten us all with the record of onshore Fylde seismic events since 1970, and tell us how this compares with the national average, or indeed (and this will be easier) the recorded events since 2011.

              [Edited by moderator]

            • To avoid any further obfuscation by the pro-fracking lobby.

              The irrefutable facts are:

              1. The geology of Fylde is faulted.

              2. In August 2019 there was a fracking induced earthquake,
              2.9 ML , Intensity 6.

              3. Local residents fear any further earthquakes.

        • Fred, Mr Hicks seems to agree with me that seismic events in the Fylde area are not common – they are to quote him “low rate”. I’m not sure why you are trying to pretend otherwise (apart from that reflexive contrarian position of yours of course).

          It is only fools with too much time on their hands and an axe to grind who try to pretend that there are hundreds to muddy the water so everyone else is as blind as they are. It didn’t work (as usual with your “logic”).

          Either way, the quake was either fracking related or it is evidence supporting the idea that the area is too faulted for fracking to be sensible (and therefore it would be a *bad* thing to be trying according to Prof Stephenson). Argue your way out of that Fred.

          [Edited by moderator]

          • A return to low rate background, reaction. Once again you feel the need to edit, but it is now too obvious and the fact others are following just makes it more so. Contrarian to quote the full text or to need to edit it? Certainly not up to A level English, more BBC than the BBC! (When they go on strike, can I get a refund on my fee? I will need it, Octopus just tried to raise my monthly DD from £170 to £390. Going well, isn’t it, this energy policy?)

            So, what are you trying to say in your usual confused way? Are you implying that the Fylde is so faulted it is prone to seismic activity-in which case the recent event should not have been a surprise, and based upon hundreds of seismic events every year in the UK then it must be luck that the Fylde has escaped so lightly! If you are trying to say the area is therefore not suitable for fracking because it is unstable that is another matter, but would not mean that would be common ground, and would also imply the recent event was to be expected. Maybe you are trying to support the anti consensus within the posts saying that the area is so faulted that seismic activity was not to be expected, under any circumstances, other than fracking-which I would not describe as muddying the waters but just silly/illogical and desperate.

            It doesn’t look like early evening posting increases clarity from you, and Alan’s excuse of youth is not valid-sorry-but, it never is. If trying to find some sense within the contrarian suggestions is being contrarian, I welcome that label also noting that over the years I have posted on DoD the usual suspects fall back upon labelling instead of dealing with the reality. Usual activist mechanism, once unrecognized but no longer. Get the same from a room full of economists, so not unusual to see how so much “expertise” can still end up with very muddy waters. At the end make a choice is open to everyone, or in the case of the economists ignore them all and listen to Buffett who did get it right on inflation to then be contradicted by the economists immediately, who have yet to apologize as they are too busy with new assessments. Just remember they will still be “mighty” assessments, but new ones.

            • Sorry Martin but I don’t have either the time or the inclination to try to distil anything meaningful from your post there.

              Are you perhaps using an AI engine to generate your Collytwaddle these days?

              Probably not, because that would suggest intelligence might be found somewhere in it 🤷‍♂️

                • I am sure everyone now knows about the terrible multiple earthquakes and multiple aftershocks in Turkey and Syria. There are estimated 5,000 deaths and an unknown number of injured still beneath the collapsed structures and houses. The earthquake impact zone is some 200 miles wide and almost completely destroyed cities within the zone. Buildings are still collapsing in the aftershocks. Surviving people are fleeing to safer areas in freezing conditions and torrential rain. There are large fault zones that have shifted in a highly complex and very faulted rift zone. The North Anatolian Fault.The East Anatolian Fault. And the Dead Sea Transform. All of which are active, but not to this latest extent. *- https://earthsky.org/upl/2023/02/Turkey-earthquake_USGS_6Feb2023-e1675719196924.jpeg – *

                  There are calls for financial, humanitarian and medical support, which I’m sure we will all be contributing to. – *’ https://earthsky.org/human-world/turkey-syria-earthquake-february-6-2023/?mc_cid=72360c9667&mc_eid=7a14b1e337 ‘*

                  In one of the video reports in the link above, Kenan Akbayram says this –
                  ‘We needed to do the seismic risk and hazard analysis before this earthquakes comes.
                  That means we had to check the engineering structure of the soil and the engineering structure of the existing buildings.
                  And then we needed to modify our buildings or our cities around these areas.
                  But unfortunately, we did not do that.
                  This region is not prepared.’

                  Which is precisely what I was saying about the plans to reinstate fracking in the United Kingdom by Liz Truss, which fortunately for everyone living and working in structurally compromised buildings and hospitals in the United Kingdom, ended in a Parliamentary furore and the demise of Liz Truss plans to resurrect fracking which was subsequently reversed by Rishi Sunak. Maybe Kenan Akbayram’ words should settle in any future plans to resurrect fracking in the United Kingdom.

                  Perhaps this recent legacy earthquake in the Blackpool area, which may well be connected to the earlier fracking operations, may be further concentrated in the governments plans following the Turkey and Syria earthquakes which exhibits even worse complex faults and slip zones.


                  Whether the horrifying Turkey and Syria earthquakes and aftershocks are related to recent increases in fracking and oil extraction operations in the area, in which UKOG appear to be active, remains to be seen. The last major earthquake in the area was back in 1939.

              • Well, well, reaction.

                Insults instead of anything meaningful from yourself. That is intelligence? I thought you might try and unravel the oxymorons within the anti consensus, but in retrospect, they are pretty near impossible to unravel so I should have expected as much.

                If you are unable to debate coherently, that is okay. Resorting to insults hardly raises your own intelligence profile, although it does seem to have appeal to some others. Not the most intelligent use of the Internet, though.

                I would just point out that according to the latest tracker survey the horror that I am not the “contrarian” to the majority. I, and a few others, are the “voice” of the majority. They are not always expected, or required, to be silent. That being the reality, then the only explanation is that the majority are not as intelligent?? Last resort stuff, taken from the playground and tried by many others on this site who then shoot themselves in their feet, getting carried away by their higher intelligence cloak/New Clothes, to then post factual nonsense. Anticipating that the moderation will drag them out of the mire.

                You are the contrarian, John. Your other persona within his (minority) bubble seems to confuse even yourself regarding the arithmetic.

        • AHHHH MARTIN ,

          There you go again , spitting out more of your ” COLLYWAFFLE ” now let JACK help you out once again , by reminding the readers what ” really ” prompts you to continually gripe about the National Trust ( NT )

          For starters Ladies and Gentlemen , those of you that are not up to spec on this topic , let me bring you up to date .

          MARTIN has a DEEEEEEEEP hatred and bitterness towards the NT which first started when they as the second largest (only by a Cats Whisker ) landowner in the UK , gave a FIRM TWO FINGERS to INEOS and ALL Fracking activities on their land .

          Ever since, MARTIN has in his/her own feeble attempt been trying to chip away at this much loved institution .

          Watch this space Ladies and Gentlemen…….. In his one man quest to turn people against the NT , don’t be surprised if at some point you’re engaged in seriously trivial, pety arguments….. Maybe it could be an argument about their woodlands, with such complaints about the stems on Daffodils being to long , not enough leaves on the trees , Buttercup petals not being yellow enough ???????

          YES , I kid you not .

          [Word added at poster’s request]

          • MODERATOR, please amend above post .

            Third paragraph…… Missing word ” largest ”

            Should read …………. ( only by a Cats Whisker ) ” largest ” landowner in the UK .

  6. I realise yesterday’s event was not as strong as the 2011 Preese Hall 2.3 ML event but given the proximity of this recent event to the site at PNR, and the fact that the event at Preese Hall was found to have compromised the well, will any investigation of the wells for any damage at PNR be considered?

  7. “Interesting tiny, but felt, M1.5 earthquake in N England yesterday detected by the BGS. Epicentre 2km north of hydraulic fracturing site that ceased operating in 2019 & further away than, yet at a similar depth to (2km), directly induced quakes in 2018-19 http://earthquakes.bgs.ac.uk/earthquakes/recent_events/20230203193600.html#page=summary

    Does it indicate a return to low-rate background seismicity, highlighting potentially seismogenic faults in the area, or is there a late triggering effect due to the fluid injection for well stimulation back in 2018/19?"
    ~ Steve Hicks, Seismologist, @ES_UCL @ucl

    • Felt is not tiny. Past assessment of impact of tremors is based on different data, mainly relying on the assumption that naturally occurring events were originating at a lower level beneath the surface. This is an extremely unusual event for the Fylde.

      The Hicks quote is not really appropriate. A 1.5 event is not a return to Fylde onshore seismicity prior to 2011. If he meant return to low level during and immediately after fracking fair enough.

      He is young. He will learn to tweet more accurately.

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