#EarthquakeReport for #OTD in 2017 M 6.7 #Earthquake offshore of #LoyaltyIslands
compressional earthquake related to the southern New Hebrides subduction zone
read reports
https://earthjay.com/?p=5918
https://earthjay.com/?p=5956
Fantastic kickoff meeting with the foremost experts in Cascadia tectonics and related science
Great breakout sessions today!
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#EarthquakeReport for M5.9 #Lindol #Earthquake in #Mindanao #Philippines
shallow crustal
strike-slip
probably left-lateral along the Philippines fault system
https://earthquake.usgs.gov/earthquakes/eventpage/us6000lgpg/executive
tectonic background & historical analogues
https://earthjay.com/?p=5255
#EarthquakeReport for M5.9 #Lindol #Earthquake in #Mindanao #Philippines
intensity report MMI5
crustal strike-slip
probably along Philippine fault system http://dx.doi.org/10.5772/56593
https://earthquake.usgs.gov/earthquakes/eventpage/us6000lgpg/executive
tectonic background & historical analogues
https://earthjay.com/?p=5255
#EarthquakeReport for #OTD in 1989 M6.9 #Earthquake in central #California
#LomaPrieta #WorldSeries temblor occurred along the #SanAndreas fault system
landslides & liquefaction
strong & widely felt ground shaking
many casualties :-(
extensive report:
https://earthjay.com/?p=8992
#EarthquakeReport for M4.8 #Earthquake near #Petrolia #california
left-lateral strike-slip (?) earthquake within the Gorda plate
https://earthquake.usgs.gov/earthquakes/eventpage/nc73947830/executive
read about regional tectonics here: https://earthjay.com/?p=10604
#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
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
#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
#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
lover of mud, sand, gravel, chocolate and Earthquake Reports at https://earthjay.com