Jason R. Patton @earthjay@qoto.org

#EarthquakeReport for M6.8 #Gempa #Earthquake in the #Philippines

mechanism & depth suggest to be on megathrust subduction zone (?)

@USGS_Quakes

model suggests chance for #Liquefaction

https://earthquake.usgs.gov/earthquakes/eventpage/us6000nhqc/executive

in region of M 7.6 in December '23: https://earthjay.com/?p=11611

#EarthquakeReport for M6.8 #Gempa #Earthquake in the #Philippines

mechanism & depth suggest to be on megathrust subduction zone (?)
possible local #Tsunami (?)

https://earthquake.usgs.gov/earthquakes/eventpage/us6000nhqc/executive

in region of M 7.6 in December '23: https://earthjay.com/?p=11611

#EarthquakeReport for M 4.9 #Earthquake near #Barstow southern #California

Upon further reflection, appears to be left-lateral earthquake sequence
possibly related to the Manix fault (?)

report here: https://earthjay.com/?p=11968

#EarthquakeReport for the M 4.9 #Earthquake east of #Barstow southern #California

looks like a right-lateral strike-slip earthquake mechanism (near the Calico fault)

https://earthquake.usgs.gov/earthquakes/eventpage/ci40675215/executive

learn about the tectonics of southern California in '20 report https://earthjay.com/?p=9580

#EarthquakeReport for M6.2 #Sismo #Terremoto #Earthquake en #Guatemala

Intermediate depth

Tectonic background in 2019 report from analogous event
https://earthjay.com/?p=8307

https://earthquake.usgs.gov/earthquakes/eventpage/us7000n0ka/executive

#EarthquakeReport for M7.4 #Sismo #Terremoto #Earthquake en #Chile y #Bolivia

intermediate depth
normal (extensional) mechanism
within subducted Nazca plate (slab event)

report: https://earthjay.com/?p=11955

#EarthquakeReport for M7.3 #Sismo #Terremoto #Earthquake en #Chile #Bolivia

this shows the @USGS_Quakes estimate of fatalities & damage

hopefully not too many fatalities!

learn more about regional tectonics: https://earthjay.com/?p=8588

https://earthquake.usgs.gov/earthquakes/eventpage/us7000n05d/executive

#EarthquakeReport for M7.3 #Sismo #Terremoto #Earthquake en #Chile #Bolivia

intermediate depth
normal (extensional) mechanism
"slab" event within subducted Nazca plate
chance for liquefaction

learn more about regional tectonics: https://earthjay.com/?p=8588

https://earthquake.usgs.gov/earthquakes/eventpage/us7000n05d/executive

#EarthquakeReport for M5.7 #Earthquake offshore #VancouverIsland #Canada

Probably strike-slip (?) Maybe normal (extensional) (?)
Sequence of earthquakes where these are common

Learn more from 2018 report:
https://earthjay.com/?p=7888

https://earthquake.usgs.gov/earthquakes/eventpage/us7000mx3m/executive

#EarthquakeReport for #OTD in 2019 the #Ridgecrest #Earthquake Sequence in southern #California

M6.4 left-lateral strike-slip earthquake triggered M7.1 right-lateral ss eq
generated liquefaction/landslides
@CAGeoSurvey @USGS_Quakes responded

read reports https://earthjay.com/?p=8656

#EarthquakeReport for M7.2 #Sismo #Terremoto #Earthquake en #Peru

megathrust subduction zone earthquake (?)
#Tsunami observed at Arequipa tide gage near epicenter
40cm wave height
20cm amplitude

Regional tectonics in 2021 report:
https://earthjay.com/?p=9916

https://earthquake.usgs.gov/earthquakes/eventpage/us6000n8tq/executive

#EarthquakeReport for M7.2 #Sismo #Terremoto #Earthquake en #Peru

High shaking intensity
Reverse (Compressional) earthquake mechanism
Appears to be megathrust subduction zone earthquake

Regional tectonics in 2021 report:
https://earthjay.com/?p=9916

https://earthquake.usgs.gov/earthquakes/eventpage/us6000n8tq/executive

#EarthquakeReport for M4.5 #Earthquake in the #Geysers region of northern #California

the Geysers is an active geothermal area
map shows 30 days of earthquakes
>1300 events

https://earthquake.usgs.gov/earthquakes/eventpage/nc75017972/executive

regional tectonics in 2017 report: https://earthjay.com/?p=6593

#EarthquakeReport for M4.5 #Earthquake in the #Geysers region of northern #California

right-lateral (?) strike-slip earthquake
the Geysers is an active geothermal area
intensity MMI 6

https://earthquake.usgs.gov/earthquakes/eventpage/nc75017972/executive

regional tectonics in 2017 report: https://earthjay.com/?p=6593

#EarthquakeReport for shallow M 4.2 #Earthquake offshore of northern #California #HumboldtCounty

left-lateral (?) strike-slip (side-by-side) mechanism
probably in Gorda plate

https://earthquake.usgs.gov/earthquakes/eventpage/nc75017417/executive

learn more about regional tectonics: https://earthjay.com/?p=10604

#EarthquakeReport for #Earthquake along the Tonga plate boundary

reverse or thrust (compressional) mechanism
intermediate depth
event within subducted Pacific plate

https://earthquake.usgs.gov/earthquakes/eventpage/us6000n158/executive

learn about regional tectonics in 2022 report:
https://earthjay.com/?p=10493

#EarthquakeReport for #OTD in 2019 M 8.0 #Sismo #Terremoto #Eartthquake in #Peru

intermediate depth yet widely felt
@USGS_Quakes models suggest chance for triggered landslides and induced liquefaction

learn more:
https://earthjay.com/?p=8541