Jason R. Patton @earthjay@qoto.org

#EarthquakeReport #TsunamiReport for #OTD in 2018 M 7.5 #Earthquake offshore of #NewCaledonia #LoyaltyIslands

maybe related to 8/29/18 M7.1
extensional (normal) "outer rise" type earthquake
triggered M6.6 earthquake
generated modest tsunami

read report:
https://earthjay.com/?p=8036

@berndandeweg i agree that the earthquake likely occurred on west dipping fault plane. could be on fault in upper plate (like a splay fault) or the slab is shallower than the USGS slab model.
@judithgeology suggests the latter.

possibly larger, if event not on megathrust. if on megathrust, seems more likely it would extend further updip with larger slip area, especially in shallow region of megathrust. (?)

well, all day i have had it in my mind that the mag was M 7.4 and that is what i wrote for the ground failure and intensity interpreti e posters.

they are updated online and here is a tweet showing them.

here is the #EarthquakeReport:

https://earthjay.com/?p=11611

#EarthquakeReport #TsunamiReport for M 7.4 #Lindol #Earthquake offshore of #Mindanao #Philippines

compressional (thrust) earthquake
generated tsunami
@USGS_Quakes models suggest high chance for liquefaction
triggered slip near interface (?)

report here:
https://earthjay.com/?p=11611

#EarthquakeReport for M7.6 #Lindol #Earthquake offshore of the #Philippines

generated ~10cm amplitude (20cm wave height) tsunami at Davao Tide Gage (which is in a somewhat sheltered location compared to epicenter so probably larger tsunami along coast)

https://earthquake.usgs.gov/earthquakes/eventpage/us7000lff4/executive

#EarthquakeReport for M7.6 #Lindol #Earthquake offshore of #Philippines

Pacific Tsunami Warning Center notification
Probably will generate tsunami in regions listed

2018 report has tectonic background information
https://earthjay.com/?p=8086

https://tsunami.gov/events/PHEB/2023/12/02/23336002/2/WEPA40/WEPA40.txt

#EarthquakeReport for M7.6 #Lindol #Earthquake offshore of #Philippines

High intensity, hopefully not much suffering
Reported intensity MMI 10
Probably will generate tsunami

2018 report has tectonic background information
https://earthjay.com/?p=8086

https://earthquake.usgs.gov/earthquakes/eventpage/at00s51n9y/executive

#EarthquakeReport for M7.6 #Lindol #Earthquake offshore of #Philippines

Earthquake mechanism suggests event is on megathrust subduction zone interface
Probably will generate tsunami

2018 report has tectonic background data
https://earthjay.com/?p=8086

https://earthquake.usgs.gov/earthquakes/eventpage/at00s51n9y/executive

#EarthquakeReport for M7.6 #Lindol #Earthquake offshore of #Philippines

@USGS_Quakes modeled intensity MMI 7
USGS model suggests widespread liquefaction
Probably will generate tsunami

2018 report has tectonic background data
https://earthjay.com/?p=8086

https://earthquake.usgs.gov/earthquakes/eventpage/at00s51n9y/executive

#EarthquakeReport for M7.6 #Lindol #Earthquake offshore of #Philippines

Widely felt
Reported intensity MMI 7 so far
Probably will generate tsunami

2018 report has tectonic background information
https://earthjay.com/?p=8086

https://earthquake.usgs.gov/earthquakes/eventpage/at00s51n9y/executive

#EarthquakeReport for #OTD in 2017 M 6.1 #Earthquake in #Iran

felt reports of shaking intensity up to MMI 7

learn about the regional and local tectonics in the report:
https://earthjay.com/?p=6733

#EarthquakeReport for M 4.8 #Earthquake #Sismo #Terremoto near #Ocotillo and #ElCentro southern #California

felt widely

https://earthquake.usgs.gov/earthquakes/eventpage/ci39720706/executive

learn about the tectonics in a recent (this year's) Friends of the Pleistocene Field Trip Guidebook http://www.fop.cascadiageo.org/field-trips/pacific-cell-field-trips/2023-pacific-cell-salton-trough/

#EarthquakeReport for #OTD in 2018 M7.0 #Earthquake in #Alaska

intraslab (within the subducted Pacific plate) normal (extensional) earthquake

generated ground failures (landslides and liquefaction)

felt widely

also, see new map showing historical eqs

read report:

https://earthjay.com/?p=8016

Updated neotectonic map of the Cascadia margin is released!

faults, folds, and other tectonic features are mapped relative to the age of their most recent activity

https://www.oregon.gov/dogami/pubs/Pages/ofr/p-O-23-05.aspx

#EarthquakeReport for #OTD in 2018 M6.3 #Earthquake in #Iran #Iraq

strike-slip earthquake related to the Zagros fold and thrust belt

read report here https://earthjay.com/?p=7993

#EarthquakeReport for #OTD in 2022 M6.1 #Deprem #Earthquake in #Turkiye #Turkey

right-lateral strike-slip fault earthquake
along the North Anatolia fault which dominates seismic hazard in N Turkey
@USGS_Quakes landslide & liquefaction models

read report https://earthjay.com/?p=10569

#EarthquakeReport for #OTD in 2015 M7.6 #Sismo #Terremoto #Earthquake

two M 7.6 events
over 600km deep
extensional (normal) faults

read report here https://earthjay.com/?p=3333

#EarthquakeReport for #OTD in 2016 M6.9 #Sismo #Terremoto #Earthquake offshore of #ElSalvador

extensional (normal) faulting earthquake
possibly considered an "outer rise" earthquake (depending on location?)
generated small #Tsunami

read report here https://earthjay.com/?p=4480

#EarthquakeReport for M 6.7 #Earthquake offshore of #Vanuatu

Reverse or thrust earthquake mechanism

Recent earthquake in similar location:
https://earthjay.com/?p=10727

https://earthquake.usgs.gov/earthquakes/eventpage/us6000lq00/executive

#EarthquakeReport for M 6.7 #Earthquake offshore of #Vanuatu

Moderate ground shaking intensity

Earlier this year was an M7.0 in nearby location: https://earthjay.com/?p=10727

https://earthquake.usgs.gov/earthquakes/eventpage/us6000lq00/executive