Jason R. Patton @earthjay@qoto.org

#EarthquakeReport for #OTD in 2016 M6.4 #Earthquake offshore of #NewBritain #PapuaNewGunea

intermediate depth normal (extensional) earthquake within (intraslab) the Solomon Sea plate

read more:
https://earthjay.com/?p=4346

Eclipse in Manila

In Memoriam: James Frazier “Jim” Davis (1931–2023)

California Geological Survey, California State Geologist, 1978–2003

https://www.conservation.ca.gov/cgs/pages/tributes/jim_davis.aspx

#EarthquakeReport for #OTD in 2018 M7.0 #Earthquake in #NewBritain #PapuaNewGuinea

reverse (compressional) earthquake mechanism

learn more here:
https://earthjay.com/?p=7839

#EarthquakeReport for M 4.5 #Earthquake beneath #Washington

Shaking intensity up to MMI 5
Compressional earthquake mechanism suggests the event may be in North America plate

Learn more about the Cascadia subduction zone here: earthjay.com/?p=3640

#EarthquakeReport for M 4.5 #Earthquake beneath #Washington

Depth suggests may be intraplate earthquake, within subducted Juan de Fuca plate (?)

Learn more about the Cascadia subduction zone here: https://earthjay.com/?p=3640

https://earthquake.usgs.gov/earthquakes/eventpage/uw61965081/executive

#EarthquakeReport for M 6.7 & M 6.9 #Earthquake sequence in and offshore of #PapuaNewGuinea

two reverse (compressional) intraplate (?) earthquakes
earthquakes appear to reveal geometry of subducted slab (?)
low intensity ground shaking

read report here https://earthjay.com/?p=11470

Office Assistant got some exercise today...

#EarthquakeReport #TsunamiReport for #OTD M 7.5 #Gempa #Earthquake in #Dongalla #Palu #Sulawesi #Indonesia

left-lateral strike-slip earthquake
kilometer scale ground failures
large tsunami runups

reports:
https://earthjay.com/?p=7793
https://earthjay.com/?p=7866

#EarthquakeReport for M5.4 #Gempa #Earthquake offshore of #Sumatra #Indonesia

Possibly aftershock from 2012 Wharton Basin M8.6 earthquake sequence

Read about 2012 earthquakes earthjay.com/?p=294

https://earthquake.usgs.gov/earthquakes/eventpage/us6000lb60/executive

#EarthquakeReport for #OTD in 2016 M 4.9 #Earthquake offshore of #Oregon #California

classic left-lateral strike-slip earthquake along reactivated faults within the Gorda plate

read more: https://earthjay.com/?p=4320

#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

read our paper on slip deficits calculated for megathrust and crustal faults in southern #Cascadia subduction zone & #Mendocino triple junction in northern #California

we used 3 geodetic datasets: GNSS, benchmark leveling, tide gage

https://doi.org/10.1785/0120230007

#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

No need to fact check this

#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