Jason R. Patton @earthjay@qoto.org

#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

#EarthquakeReport for M4.9 #Sismo #Terremoto #Earthquake en #Mexico

Normal (extension) earthquake mechanism

Learn about the southern Pacific-North America plate boundary in 2018 report
https://earthjay.com/?p=6962

https://earthquake.usgs.gov/earthquakes/eventpage/ci40746912/executive

#EarthquakeReport #EruptionReport for #OTD in 2018 M6.9 #Earthquake in #Hawaii

part of #Kïlauea #Volcano eruption event
generated #Tsunami
@USGS_Quakes models show chance of earthquake triggered #Landslides

learn more https://earthjay.com/?p=7350

#EarthquakeReport for #OTD in 2020 M6.5 #Earthquake offshore of #Crete

reported shaking intensity MMI5
generated #Tsunami

learn more https://earthjay.com/?p=9493

#EarthquakeReport for #OTD in 2017 M6.2 & M6.3 #Earthquake couplet in #BritishColumbia

right-lateral strike-slip (side by side motion, like the San Andreas fault) earthquake associated with the Denali/Chatham Strait fault system

learn more https://earthjay.com/?p=5345

#EarthquakeReport for #OTD in 1992 M7.2 Cape Mendocino #Earthquake in #Humboldt County #California

take a mythical journey with a student following the earthquake as they made discoveries https://storymaps.arcgis.com/stories/695f0487e6764718bb36ca05d1bb7404

learn from @CalConservation @CAGeoSurvey https://www.conservation.ca.gov/cgs/earthquakes/cape-mendocino

#EarthquakeReport for #OTD in 1992 M7.2 #Earthquake in #HumboldtCounty #California

I was there
triggered 2 M6+ eqs
generated tsunami, led to the National Tsunami Hazard Mitigation Program
landslides and liquefaction

learn more: https://earthjay.com/?p=5233
& https://earthquake.cascadiageo.org/?page_id=130

#EarthquakeReport for #OTD in 2023 M7.2 #Earthquake along the Kermadec subduction zone (convergent plate boundary fault system)

generated modest #Tsunami
felt strongly on Raoul Island MMI 7 intensity!

learn more
https://earthjay.com/?p=11021

#EarthquakeReport for #OTD in 2023 M7.1 #Gempa #Earthquake offshore of #Sumatra #Indonesia

felt widely
@usgs_earthquakes models show high chance for liquefaction and moderate chance for landslides

learn more:
https://earthjay.com/?p=11040

#EarthquakeReport for M6.0 & M6.1 #Earthquake in #Taiwan

3rd and 4th largest aftershocks following 2 April '24 M 7.4
@USGS_Quakes model for M6.0 (onshore) suggests high chance for #Liquefaction

original report here:
https://earthjay.com/?p=11904

#EarthquakeReport for M4.3 #Earthquake in southern #California

Strike-slip earthquake mechanism
Doesn't look like it's associated with a mapped fault

Learn more from 2016 report https://earthjay.com/?p=3758

https://earthquake.usgs.gov/earthquakes/eventpage/ci40549375/executive

#EarthquakeReport for #OTD in 1906 M7.8 #Earthquake in #California

right-lateral strike-slip earthquake on the San Andreas fault
generated modest #Tsunami in #SanFrancisco Bay

learn more here:
https://earthjay.com/?p=8428