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Reposted by Dr. Dee Ninis

Prof Helen Bostock @oceanhelen.bsky.social · Jul 30

New in the @aunz.theconversation.com by @deeninis.bsky.social about the large Kamchatka earthquake.

Kamchatka earthquake is among top 10 strongest ever recorded. Here’s what they have in common

The earthquake in Kamchatka is the largest worldwide since 2011. Its location has been very seismically active in recent months.

theconversation.com

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Dr. Dee Ninis @deeninis.bsky.social · Jul 31

My thoughts on the recent M8.8 earthquake sequence and tsunami, with my NZ colleague John Townend @vicuniwgtn.bsky.social @earthquakes.au @monashuniversity.bsky.social theconversation.com/kamchatka-ea...

Kamchatka earthquake is among top 10 strongest ever recorded. Here’s what they have in common

The earthquake in Kamchatka is the largest worldwide since 2011. Its location has been very seismically active in recent months.

theconversation.com

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Dr. Dee Ninis @deeninis.bsky.social · Apr 23

This morning, a M4.6 (prelim.) earthquake near Singleton was felt across eastern NSW.
Our latest analysis here at @earthquakes-au.bsky.social now has this as M4.9 with a depth of <4 km - comparable to the depths of earthquakes at the nearby Mt Arthur Coal Mine in 2024. www.abc.net.au/news/2025-04...

Early morning NSW Hunter earthquake felt nearly 500km away in Canberra

A magnitude-4.6 earthquake shakes parts of the Hunter region with impacts felt as far away as Tamworth and Canberra.

www.abc.net.au

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Reposted by Dr. Dee Ninis

Adam Pascale @seislologist.bsky.social · Apr 18

That’s a wrap for 2025 at the @seismosocam.bsky.social annual meeting. As always I am grateful for the opportunity to meet my online friends in person, and to showcase our observatory and the tools that we developed to monitor earthquakes. See you all next year in Pasadena!

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Dr. Dee Ninis @deeninis.bsky.social · Apr 13

How it started/ How it’s going
Water ripples
L - modern, active, beach sand;
R - ancient, preserved, sandstone

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Dr. Dee Ninis @deeninis.bsky.social · Apr 9

In the last ~2 weeks the Asia Pacific region experienced several significant earthquakes.
In addition, Japan released casualty and economic loss scenarios in the event of a local M8.0+ earthquake.
I answer a few questions in this Explainer @earthquakes-au.bsky.social
www.abc.net.au/news/2025-04...

A spate of earthquakes just rattled the Asia Pacific. Should we worry?

The deadly Myanmar earthquake last week was the biggest among a number of smaller quakes that rocked the region.

www.abc.net.au

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Reposted by Dr. Dee Ninis

Dr Adam Jeffery @agpaitic-adam.bsky.social · Apr 3

A relict olivine crystal being insidiously replaced by serpentine in a forsterite-diopside marble.

#thinsectionthursday #geology #science #minerals #rocks

A large olivine crystal showing bright second order interference colours. Fractures cut across the majority of the crystal, along which the olivine is being replaced by first order grey serpentine.

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Gareth Funning @gfun.earth · Apr 2

The whole #MyanmarEarthquake rupture in one interferogram! This is three consecutive wide swath frames of ALOS-2 data, provided by JAXA through agreement with NASA. The line-of-sight (LOS) is ~perpendicular to fault strike, so most of what you see is vertical motion at bends and steps of the fault.

A radar interferogram covering 17.5 to 23.5 degrees north, in Myanmar. Tightly clustered fringes delimit the likely 2025 earthquake rupture zone.

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Dr. Wendy Bohon @drwendyrocks.bsky.social · Mar 28

Aftershock foreshock for the M7.7 earthquake in Myanmar indicates a very high likelihood (97%) of earthquakes of magnitude 5+, 40% chance of M6+ and a very small possibility of another quake of M7+ (~6%) in the next week.

earthquake.usgs.gov/earthquakes/...

Graph showing the possibilities of aftershocks of different magnitudes. 40% chance of M6+, 97%chance of magnitude 5+z

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Dr. Dee Ninis @deeninis.bsky.social · Mar 28

A M7.7 followed ~11 mins later by a M6.4 aftershock - still a strong earthquake and likely damaging in itself - in Myanmar/ Burma about 40 mins ago. It took ~12 minutes for the associated waveforms to arrive at our recorders in the @earthquakes-au.bsky.social network in southeast Australia.

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Dr. Dee Ninis @deeninis.bsky.social · Mar 25

From Geoscience Australia

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John Ristau 🇨🇦 🇳🇿 @earthquakenz.bsky.social · Mar 25

Large earthquake south of the South Island of New Zealand. www.geonet.org.nz/earthquake/2... 🧪 Mw 6.6 with oblique-reverse faulting.

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Dr. Dee Ninis @deeninis.bsky.social · Mar 25

We see you, Aotearoa.
A M6.9 (prelim.) earthquake ~140 km offshore of the southernmost South Island, New Zealand, and widely felt across the South and North Islands, as detected on @earthquakes-au.bsky.social seismic network in southeast Australia.

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Reposted by Dr. Dee Ninis

Seismology Research Centre @earthquakes.au · Mar 11

Field work is delaying this week’s earthquake map, but while you’re waiting don’t forget to pick up your handy reference to the world’s largest earthquakes, conveniently listed on the back of this awesome Seismology t-shirt. Head to our website to buy yours now!

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Reposted by Dr. Dee Ninis

Wang Yu @wangyu-1979.bsky.social · Mar 10

Here I am again. The Cheloungpu fault trench muesum, #Taiwan

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Reposted by Dr. Dee Ninis

Adam Pascale @seislologist.bsky.social · Mar 7

They’ve arrived! Head over to www.src.com.au/product/seis... to get yours!

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Reposted by Dr. Dee Ninis

Seismology Research Centre @earthquakes.au · Mar 6

We’ll be giving away 100 t-shirts a day at the @seismosocam.bsky.social annual meeting next month in Baltimore, but if you’re not attending or just don’t want to miss out, you can purchase our new design MegaQuake T-shirt now through our website now - while stocks last!

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Reposted by Dr. Dee Ninis

Dr. Alice-Agnes Gabriel @inseismoland.bsky.social · Feb 25

What does an earthquake look like beneath your feet? This visualization shows seismic waves in action.

We’re studying how such visuals improve public communication after major earthquakes. We'd love your input! Please take our short survey & share: ww3.unipark.de/uc/SIOseismi...

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Reposted by Dr. Dee Ninis

Frankie Butler @frankiebutler.bsky.social · Feb 22

Geology is absolutely beautiful.

Ripple marks, cross bedding and many more sedimentary features from a solo excursion in 2017.

Photos from kata-juta national park #Australia #geology #outback #uluru

Orange coloured sandstone with clear evidence of cross bedding

Ripple marks - exceptionally preserved in sandstone.

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Dr. Dee Ninis @deeninis.bsky.social · Feb 22

Ever wondered what fossils palaeontologists of the future, studying the ‘Anthropocene’, will likely find? 🤔 https://www.theguardian.com/science/2025/feb/22/technofossils-how-plastic-bags-and-chicken-bones-will-become-our-eternal-legacy

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Reposted by Dr. Dee Ninis

Claudio Satriano @claudio.seismicsource.org · Feb 14

Moment magnitudes and corner frequencies calculated for 437 events from the Santorini crisis (Ml>3.5, Jan 24 - Feb 13) using SourceSpec. Big thanks to the EIDA node of the National Observatory of Athens for keeping their services online during this critical period.
sourcespec.seismicsource.org

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Dr. Dee Ninis @deeninis.bsky.social · Feb 14

#GeoValentine! ♥️

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Pete Bowden @peterlbowden1.bsky.social · Feb 14

#GeoValentine

frankrennie @frankrennie.bsky.social · Nov 15

A heart-warming image for a dull day 😏 Built into the wall surrounding Rodel churchyard in south Harris, goodness knows how old this work of art is (the church is 12th century, at least).

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Dr. Dee Ninis @deeninis.bsky.social · Feb 12

Not gonna lie - I’m jealous of this licence plate

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Reposted by Dr. Dee Ninis

Temblor, Inc. @temblorinc.bsky.social · Feb 10

A M7.6 earthquake struck SW of George Town, the capital of the Cayman Islands. This offshore quake occurred on a strike-slip fault. In this short news report, Temblor scientists consider which faults have been brought closer to failure.

temblor.net/temblor/magn...

Magnitude 7.6 earthquake strikes offshore fault near the Cayman Islands - Temblor.net

A relatively shallow, left-lateral strike-slip event struck on a fault zone that bounds the Caribbean plate.

temblor.net

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