Adam Pascale

This morning's magnitude 4.9 earthquake occurred about 100km from the South Australian coastline, 15km below the continental shelf. A magnitude 4.0 occurred nearby in 2015. The largest earthquake in the region was a magnitude 6.6 near Robe/Beachport, almost 130 years ago (bottom right of the map).

There have been multiple earthquakes between magnitude 5.0 and 7.0 in the Coral Sea north of Vanuatu in the last two hours. As viewed in Seismoscope using data from GFZ.

The Great ShakeOut Earthquake Drill is today. Get on board. Actually, get under a table. @greatshakeout.bsky.social

Don’t be scared, be prepared. The chance of a large aftershock - potentially larger than the original #earthquake - is elevated in the days after an event. Know your safe places, and secure objects that may fall during strong ground shaking. #dropcoverholdon #korumburra #leongatha

Great reporting to include the message for locals to make preparations to keep safe, and to drop, cover and hold on if there is strong shaking. Quite timely given the global Shake Out exercise is a little over a week away. #DropCoverHoldOn #ShakeOut #Don'tBeScaredBePrepared

I’m in @news.abc.net.au this morning to talk earthquakes on the radio. This was scheduled mid last week after a few recent magnitude 3’s in eastern Victoria, but I suspect the discussion might include the magnitude 4.8 at Korumburra from the weekend, the largest earthquake in the state for 3 years.

We’ve had our KORUM seismograph at the epicentre since the 2009 earthquakes. The earthquakes are almost directly below the station at 8-9km deep. Today’s M4.8 maxed out the seismometer, but we also run an accelerometer at the site, and the peak ground acceleration (PGA) recorded was around 0.13g.

This video was captured from the latest version of Seismoscope that allows you to show and hide solutions from external earthquake sources. This feature update is available now for Apple devices, and is coming soon to the Android version.

This morning’s magnitude 4.8 earthquake is the largest in Victoria for 3 years. The epicentre was near Korumburra. It’s the largest on record in the area. In 2009 a magnitude 4.7 & 4.6 occurred within a 2 week period at the same place. Dozens of aftershocks have occurred, the largest so far at M3.2

Android users - our latest app update includes data from @geonet_nz with links to their reporting form if you feel an earthquake in Aotearoa. Download links at seismoscope.net or search for Seismoscope in the store and look for our logo.

Do you remember what you were doing at 9:15am five years ago today? It’s hard to believe it’s been 5 years since the magnitude 5.9 Woods Point earthquake, the largest ever recorded in Victoria. Most of the 1800 aftershocks we’ve detected occurred in the first few days, now averaging just one a week.

Well, I underestimated the interest in our app. Our earthquake list was accessed over 100,000 times today, which made our web hosting service hit its connection limit and recommend we implement an attack condition. Apologies if the app has been unable to load our data 😬 but other sources seem okay.

Thanks, Wendy! One thing the app drove home for me was how incredibly active California and Alaska are in any 24-hour period, and how many earthquakes have happened in just the last 3 hours (the pulsing rings). And your pin is right in the middle of it!

It may seem like just another earthquake browser app, but Seismoscope makes reporting what you felt much easier, and your feedback goes directly to the relevant authority. Seismoscope also includes @earthquakes.au data that you can’t get anywhere else 😊

Mysterious low frequency signals have been recorded ever since high sensitivity seismometers were deployed the 1960s. Scientists today still aren’t sure exactly how the earth is generating them. This video covers the latest of many theories.

Check out this video - it opens with some of the drone footage I took last year in Western Australia. Such a privilege to be involved in the WA Array project.

Another major earthquake in Indonesia. This one is magnitude 6.8 and only about 50km from the large city of Medan. Aftershocks at Flores continue.

If you have a hidden safety phone in Australia, remember to switch it off or put it in airplane mode before 2pm AEST today if you don’t want it to be discovered during the AusAlert test. Volume and mute settings will be overridden by the test.

Despite the 3:30am start, I really enjoyed answering questions from callers on the @news.abc.net.au #Overnights program last Friday. Here's a couple of snippets, but you can find the full program at the link below. The hour-long earthquake segment starts at 1:33:14. www.abc.net.au/listen/progr...

The tragic events in Venezuela were the result of an earthquake doublet. What is a doublet, and what impact can it have on the effects of a major seismic event?

Yet another big earthquake this week? Coming through now is an M6.8 south of Mindanao, Philippines (same region as a few weeks ago).

Earthquake Early Warning in action. You don’t often get a camera isolated from the shaking, so that’s interesting. I’ve since read other comments about the video and alert being fake because we can’t predict earthquakes (💯 true) but it’s the effects that are being predicted, rapidly after the event.

It’s devastating either way, but can anyone confirm that there were two earthquakes? All the data I’m looking at shows a single event trace. That said, I’ve never looked at a doublet in the M7 range, so I may be missing something.

So do you say “6.7 magnitude” or “magnitude 6.7”? I’ve always used the latter. My reasoning: it’s not a unit of measurement like 6.7 metres or 6.7 megatons. Originally the number was the relative order of magnitude above human perceptibility. Let’s brainstorm some unit names. I like sensillas ™️

Some more purrty rocks from the Geoscience Australia foyer

I’m at Geoscience Australia for a seismic software user group meeting this week. I highly recommend visiting their public display in the foyer - lots of beautiful rocks, and you can even touch the moon!

Jumping on the #grwm trend to reveal the truth about earthquake prediction.

Here's the final video in my WA Array series, documenting the third and final field trip of a deployment phase. It involves collecting and cleaning the equipment, ready to do it all again in the next area of Western Australia. This exposed equipment survived a cyclone in March with very few issues.

Me today: 55 years old @earthquakes.au this year: 50 years Me at SRC this year: 35 years It’s so weird that a casual summer job after finishing a computer science degree turned into a lifelong career, but here we are. I appreciate the friends, opportunities and experiences seismology has given me.

My last day in Western Australia and I felt an earthquake! I'm in Kalgoorlie and this magnitude 3.4 earthquake locates to about 5km from where I was lying in bed! Spending my morning playing with seismic data is the perfect end to my trip!

We are at the Geological Survey of Western Australia core library today cleaning the last of the sensors and digitisers in preparation for the next deployment in less than 2 months time.

It looks like the region to the NW of Mount Perry is active again. In 2015 a magnitude 5.2 earthquake kicked off a sequence of aftershocks with magnitude 2+ events occurring regularly for almost 2 years. The area has seen ongoing activity, but these latest events are the largest since February 2015.

Last seismic station collected! Now we’re off to Kalgoorlie to clean them up for the next deployment.

We completed the last of the helicopter-serviced stations today at the most westerly point in Australia, on Dirk Hartog Island in Shark Bay. Thanks to GSWA for the opportunity to view this beautiful part of the state from the best perspective.

Lots of flying today: nine of the GSWA seismic stations collected with the help of pilot Tom

This very cute gecko was nestled in one of the stations we pulled out today. Pity I couldn’t get a photo of it sitting on one of our Gecko Seismographs! This is the second station where we’ve found the solar panel detached from the frame, presumably blown off by Cyclone Narelle last March.

Lovely little horse - I dub thee Chappell. Today’s animal encounters while collecting seismographs included a bunch of kangaroos, emus, cattle, goats, working dogs, and so many parrots and birds of prey🐴🦘🐂 🐐🐕🦜🦅

My new standing desk setup is working wonders. I feel my mood and energy levels being boosted already.