Anthony Lomax @ALomax@qoto.org

According to posts on twitter, there are significant damages and at least 2 fatalities after a moderate magnitude M5.6 #earthquake in western Java island, Indonesia. Inland shallow fault rupture, close to towns, likely explain the destructions.

RT 👇🏼 https://twitter.com/BNPB_Indonesia/status/1594596756205244418?s=20&t=N0QFeOPMmCQp1ReAfiCnjw
and
https://twitter.com/pamumpuni/status/1594599955037028354?s=20&t=N0QFeOPMmCQp1ReAfiCnjw

#EarthquakeReport #EarthquakeToot for M5.6 #Gempa #Earthquake in #Java #Indonesia South of #Jakarta

Reports of intensity MMI 7
May be damage, appears shallow but depth currently set at default 10km

Read more from report for event in 2017
https://earthjay.com/?p=6602

https://earthquake.usgs.gov/earthquakes/eventpage/us7000ir9t/dyfi/intensity

Magnitude 5.6 #earthquake on #Java #Indonesia about one hour ago (2022-11-2ZT06:21) a little south of #Jakarta. There are reports of damage. Signal on station GE.BBJI (Bungbulang, Garut, Java) courtesy of @geofon and displayed using @obspy software. I hope that damage and injuries are limited. https://earthquake.usgs.gov/earthquakes/eventpage/us7000ir9t/executive

So main #COP27 achievements are an as-yet-unfunded commitment to loss and damage and not quite backsliding on some of the commitments from COP26. Doesn’t really feel like we’re collectively meeting the moment, does it? https://www.theguardian.com/environment/2022/nov/20/cop27-climate-summit-egypt-key-outcomes

Without any binding commitments to rapidly and immediately reduce greenhouse gases, the world stands no chance to deliver on the 1,5°C limit, and by doing so minimising risks of uprooting the life supporting systems we all depend on and endangering countless human lives.
#COP27

Nov. 20, 1933: A M7.3 earthquake struck offshore Baffin Island, #Canada.
This is the largest known #earthquake along the passive margin (east/north coasts) of #NorthAmerica and the largest (known) earthquake north of the Arctic Circle.
More information: https://seismescanada.rncan.gc.ca/historic-historique/events/19331120-en.php
https://seismescanada.rncan.gc.ca/historic-historique/events/ABent2002baffinbay1933.pdf

A magnitude Mw6.9 #earthquake offshore south-central #Sumatra.

Mechanism and location suggest rupture on the shallow part of the #subduction #megathrust close to the trench (on the very shallow dipping fault plane). However, modelled depth of ~19km, if true, seems little too deep given the closeness with the trench (USGS gives same depth and mechanism). This means that we cannot exclude a rupture on the steep fault plane within the oceanic plate.

Map with source time function from Geoscope IPGP
http://geoscope.ipgp.fr/index.php/en/catalog/earthquake-description?seis=us7000iqpn
Larger map with epicenter of this event in red from USGS (both not yet on fediverse it seems)

I never expected Musk to go to such great lengths to promote the fediverse.... but here we are.

So this is my first post on Mastodon.

Part of my work as a volcanologist with the Italian National Institute of Geophysics and Volcanology (Istituto Nazionale di Geofisica e Vulcanologia, INGV) is the real-time surveillance of seismic and volcanic activity in the volcanic areas of Sicily. This is done in 8-hour shifts in the Operations Room of the INGV seat in Catania, the Osservatorio Etneo. This is me making a stupid face during my latest shift, on 5 November 2022.

Today’s #Texas M5.4 #earthquake (approximate location as a purple blob) in the context of nearby #reinjection wells and other recent #earthquakes on a map from Tung et al. (2020)

Look closely at the center of this image. You probably noticed the bright spot in the center, the central protostar. But did you notice the dark band in front of it? That’s the protostar’s accretion disk, created as material swirls around it.

The material within this disk can sometimes clump up, forming the beginnings of planets. But the protostar will absorb many of these before they can mature.

Credit: NASA, ESA, CSA, and STScI

This thread by @rvawonk digs into how central Twitter has become to relaying information during disasters, how terrible it will be to suddenly lose it.

https://twitter.com/RVAwonk/status/1592347386684506113

Yep, still angry about it.

In Europe, October 2022 was by far the warmest ever recorded, beating the previous record by over 0.5⁰C!
https://climate.copernicus.eu/surface-air-temperature-october-2022

@stevenjgibbons JMA seismic intensity maps show the greatest intensity far from the epicenter (360km deep, so Pacific Plate related). In Japanese the phenomenon of feeling a quake more strongly farther from the epicenter is called 異常震域, unusual tremor area. Do we have an English word for it?

Seismic intensity map (Japanese scale) from JMA website. M6.1, 350km depth (along the subducting Pacific Plate), not a damaging #earthquake but widely felt in Kanto and Tohoku to the North because the wave propagated efficiently along the Pacific Plate. https://www.data.jma.go.jp/multi/quake/quake_detail.html?eventID=20221114171426&lang=en

Can lots of small #earthquakes prevent a larger one from happening?

I get this question a lot and unfortunately the answer is no.

It would take 32 magnitude 5's, 1000 M4's, or 32,000 M3's to equal the energy of just one magnitude 6 event.

@freemo at well as downloading and playing with #obspy, which is highly recommended, you can see professionally produced versions of this plot, using more seismometers at #iris here: http://ds.iris.edu/spud/eventplot/20633642 and lots of further information from them here: http://ds.iris.edu/ds/nodes/dmc/tools/event/. My plot uses citizen science data collected from many private #raspishake seismometers across the globe.