#earthquaketoot — Public Fediverse posts

Hey #SF…. Was that an #earthquake? Or did a linebacker just move in next door…?

#EarthquakeToot

#EartthquakeReport #EarthquakeToot #TsunamiReport for M7.2 #Earthquake & #Tsunami offshore of #Alaska

megathrust interface eq in area of low slip '20 M 7.8
tsunami at Sand Point

read more about '20 (in green) '21 (blue) sequences in '21 report https://earthjay.com/?p=9849

https://earthquake.usgs.gov/earthquakes/eventpage/us7000kg30/executive

#EarthquakeReport #EarthquakeToot for #OTD in 2019 M7.2 #Gempa #Earthquake in #Halmahera #Indonesia

onshore crustal strike-slip fault earthquake yet generated a modest #Tsunami
felt widely
potential for triggered landslides and induced liquefaction

read report here
https://earthjay.com/?p=8781

#EarthquakeReport #EarthquakeToot for M 6.4 #Earthquake in Mendocino triple junction (Triangle of Doom) region

aftershocks suggest left-lateral strike-slip in Gorda plate

felt broadly, about 92%g in Ferndale

read more from last year's report
https://earthjay.com/?p=10125

https://earthquake.usgs.gov/earthquakes/eventpage/nc73821036/executive

hi res map here

https://earthjay.com/earthquakes/20221220_norcal/20221220_norcal_interpretation.jpg

#EarthquakeReport #EarthquakeToot for #OTD i n 2018 M7.0 #Earthquake in #Alaska

normal (extensional) earthquake in downgoing Pacific plate
felt broadly
caused significant ground failures

read report here:
https://earthjay.com/?p=8016

#EarthquakeReport #EarthquakeToot #TsunamiReport #TsunamiToot for 22 Nov '22 M7.0 #Earthquake offshore of #SolomonIslands

normal (extension) event in Australia plate
intensity MMI 8 felt
#Tsunami observed in #Honiara
seismic waves observed on DART Buoy 55023

read more in the report
https://earthjay.com/?p=10586

#EarthquakeReport #EarthquakeToot for M6.1 #Deprem #Earthquake in northern #Turkey

probably a right-lateral strike-slip earthquake along the North Anatolia fault system

strong shaking in the Düzce region, close to the 1999 M7.2 temblor

read more in the report here
https://earthjay.com/?p=10569

#EarthquakeReport #EarthquakeToot M6.1 #Deprem #Earthquake in #Turkey

@USGS_Quakes models suggest low chance for lots of triggered landslides and moderate chance for widespread induced liquefaction

Read more in report from 2020: earthjay.com/?p=9288

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irp8/ground-failure/summary

#EarthquakeReport #EarthquakeToot M6.1 #Deprem #Earthquake in #Turkey

@USGS_Quakes PAGER alert suggests large number of casualties and lots of damage

Read more in report from 2020: earthjay.com/?p=9288

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irp8/pager

#EarthquakeReport #EarthquakeToot for M6.1 #Deprem #Earthquake in #Turkey

@USGS_Quakes mechanism fits North Anatolia fault a right-lateral strike-slip system

Read more in report from 2020: https://earthjay.com/?p=9288

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irp8/moment-tensor

#EarthquakeReport #EarthquakeToot M6.1 #Deprem #Earthquake in #Turkey

Looks like along North Anatolia fault, close to 12 November 1999 M7.2 event

Reported intensity of 8 so far and lots of people live here

Read more in report from 2020: https://earthjay.com/?p=9288

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irp8/dyfi

#EarthquakeReport #EarthquakeToot #TsunamiReport #TsunamiToot for M7.0 #Earthquake offshore of #SolomonIslands

Australia plate extensional (normal) fault

small tsunami at Honiara tide gage

report forthcoming

Read more in 2017 report here
https://earthjay.com/?p=5182

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irfb/dyfi/intensity

#EarthquakeReport #EarthquakeToot #TsunamiReport for M7.0 #Earthquake offshore of #SolomonIslands

appears to be a tsunami recorded on the Honiara tide gage https://webcritech.jrc.ec.europa.eu/SeaLevelsDb/Device/1695

also seismic waves recorded on DART buoy 55023 https://webcritech.jrc.ec.europa.eu/TAD_server/Device/2082

#EarthquakeReport #EarthquakeToot for M7.0 #Earthquake offshore of #SolomonIslands

#AftershockAlert for M6.0 earthquake nearby

Read more abt tectonics of this region in 2016 report: https://earthjay.com/?p=4580

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irfm/executive

#EarthquakeReport #EarthquakeToot for M7.0 #Earthquake offshore of #SolomonIslands

@USGS_Quakes mechanism shows this to be in downgoing slab (probably?), not on meagthrust

Regional tectonics in 2017 report: earthjay.com/?p=5182

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irfb/moment-tensor

#EarthquakeReport #EarthquakeToot for M7.0 #Earthquake offshore of #SolomonIslands

@USGS_Quakes models suggest modest chance for triggered landslides and high likelihood for induced liquefaction

Regional tectonics in 2017 report: earthjay.com/?p=5182

earthquake.usgs.gov/earthquakes/ev…

#EarthquakeReport #EarthquakeToot M7.0 #Earthquake offshore of #SolomonIslands

Appears to be on megathrust

Potential for #Tsunami

Read more in 2017 report here
https://earthjay.com/?p=5182

https://earthquake.usgs.gov/earthquakes/eventpage/us7000irfb/dyfi/intensity

#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

#EarthquakeReport #TsunamiReport #EarthquakeToot #TsunamiToot for M 6.9 #Gempa #Earthquake offshore of #Sumatra #Indonesia

Cocos Isle gage updated due to twitter peer review from Harold Tobin thanks!

also added Bintuhan record

interp poster and plots updated in report here
https://earthjay.com/?p=10545

#EarthquakeReport #EarthquakeToot for M 6.9 #Gempa #Earthquake offshore of #Sumatra #Indonesia

probably slip along megathrust subduction zone where Chlieh modeled low seismogenic coupling https://doi.org/10.1029/2007JB004981

*in area absent of GPS/microatoll data

read more here:
https://earthjay.com/?p=10545

#EarthquakeReport #EarthquakeToot for M 6.9 #Gempa #Earthquake offshore of #Sumatra #Indonesia

appears to be a megathrust subduction zone fault earthquake

generated a small tsunami recorded on tide gages

read more here:
https://earthjay.com/?p=10545

#EarthquakeReport #EarthquakeToot for M6.9 #Gempa #Earthquake offshore of #Sumatra #Indonesia

Appears to be on the megathrust subduction zone fault

Read more about the regional tectonics here

https://earthjay.com/?p=5733

https://earthquake.usgs.gov/earthquakes/eventpage/us7000iqpn/executive

#EarthquakeReport #EarthquakeToot for #OTD in 2019

M7.1 #Gempa #Lindol #Earthquake offshore of #Halmahera #Indonesia

fascinating subduction dipping both east & west

generated modest #tsunami

read more: regional tectonics, seismic hazard/risk
https://earthjay.com/?p=9106

#EarthquakeReport for M 6.2 #Earthquake #Sismo #Terremoto offshore of #Chile #EarthquakeToot

At overlap area of 1960 & 2010 aftershock areas probably along megathrust

Felt intensity of MMI 7

Read more in report focusing on 2010 M 8.8 https://earthjay.com/?p=5111

https://earthquake.usgs.gov/earthquakes/eventpage/us7000ipe4/executive

#EarthquakeReport for M5.8 #Sismo #Terremoto #Earthquake in #Guatemala

#EarthquakeToot

Felt reports up to MMI 6 so far

Intermediate depth

Eq in downgoing slab

Learn more abt tectonic setting in previous report here:
https://earthjay.com/?p=8307

https://earthquake.usgs.gov/earthquakes/eventpage/us7000ip7p/executive

#EarthquakeReport #EarthquakeToot #TsunamiReport for M 7.3 #Earthquake near Tonga Trench

Here are the plots for gages that the PTWC listed as having #Tsunami waves

Pago Pago record is clear, Nukualofa record is more noisy (is it a tsunami?).

Note the difference in scale on tsunami size axis (on the right)

updated these to the report
https://earthjay.com/?p=10493

#EarthquakeReport #EarthquakeToot for M 7.3 #Earthquake near the Tonga trench #toottoot

thrust (compressional) earthquake along the outer rise

no #Tsunami observed on tide gages

report here includes my interpretation and a regional tectonic summary:
https://earthjay.com/?p=10493

@JochenFromm indeed! #EarthquakeToot

it appears to be related to the Pesaro mare-Cornelia fault (using the Database of Individual Seismogenic Sources 3.2.0 in the google map).

this fault may be between 120-160km. using wells & coppersmith mag relations with subsurface rupt length, this fault could produce a mag M 7.7-7.7 #Earthquake

there were 2 events of similar mag in the past century. map below shows 1922-2022 M>5.5.

felt reports along the coast reached MMI 7

geoscope carte shows a thrust mechanism, probably on fault plane dipping to the west, unless this is on a fault antithetic to the mapped fault (so would be reverse dipping to the east)

learn more about the regional tectonics from this #EarthquakeReport page (and included linked report pages) here https://earthjay.com/?p=4427

USGS page https://earthquake.usgs.gov/earthquakes/eventpage/us7000infp/executive

IPGP geoscope page
http://geoscope.ipgp.fr/index.php/en/catalog/earthquake-description?seis=us7000infp

#EarthquakeReport #EarthquakeToot for #OTD in 2018 M 6.7 earthquake

along the Jan Mayen transform fault offshore of #Greenland and #iceland

along the Mid Atlantic Ridge plate boundary between the North America plate and the Eurasia plate

left-lateral strike-slip #earthquake mechanism

learn more about the regional tectonics here
https://earthjay.com/?p=7972