#earthquakereport — Public Fediverse posts

It’s #EarthquakeReport Day! The M8.8 Kamchatka #earthquake was HUGE, as you can see in the cumulative energy‑release plot but no one died because it struck such a remote area. The deadliest events were the M7.7 Myanmar, M6.0 Afghanistan, and M7.1 Tibet quakes, which caused around 8,000 deaths. ⚒️🧪

RE: https://bsky.app/profile/did:plc:flcudhd6zzprrz5di6xsftap/post/3mbftlieyk22o

#EarthquakeReport for M 6.0 #Earthquake offshore of #Oregon

right-lateral strike-slip earthquake mechanism
along the Blanco transform fault, plate boundary between the Pacific and Juan de Fuca plates

tectonic background in '19 report https://earthjay.com/?p=8935

#EarthquakeReport for M 4.4 #Earthquake in #Petrolia #California

right-lateral (?) strike-slip fault earthquake sequence
in region of 1991 Honeydew Earthquake

report here: https://earthjay.com/?p=12091

#EarthquakeReport for M4.4 #Earthquake in #Petrolia #California

right-lateral strike-slip earthquake
associated with 1991 Honeydew earthquake (?)
interpretive poster
report forthcoming

https://earthquake.usgs.gov/earthquakes/eventpage/nc75077996/executive

more in 2021 report: https://earthjay.com/?p=10125

#EarthquakeReport for M 4.4 #Earthquake near #Petrolia #California #USA

5 earthquakes M 3.6, 4.1, 4.4, 4.1, 2.6
right-lateral strike-slip earthquake mechanism
likely along subducted Mendocino fault beneath North America

tectonic background in '21 report https://earthjay.com/?p=10125

#EarthquakeReport for M 6.5 #Earthquake offshore of #HaidaGwaii #Canada

Strike-slip earthquake mechanism
Felt onshore shaking intensity MMI 5

Tectonic setting in '18 report https://earthjay.com/?p=7888

https://earthquake.usgs.gov/earthquakes/eventpage/us7000ne51/executive

#EarthquakeReport for M4.7 #Earthquake near #Malibu southern #California

left-lateral (?) strike-slip earthquake mechanism
widely felt with reported shaking intensity MMI 5 (so far)

https://earthquake.usgs.gov/earthquakes/eventpage/ci40731623/executive

tectonic background in 2018 report https://earthjay.com/?p=7311

#EarthquakeReport for M7.0 #Earthquake offshore of #Kamchatka #Russia

@USGS_Quakes models show chance for triggered landslides and induced liquefaction
comparison between modeled shaking intensity and observations of intensity

report here:
https://earthjay.com/?p=12053

#EarthquakeReport for the M7.1 #Earthquake and #Tsunami offshore of #Kyushu #Japan

compressional earthquake mechanism
interface earthquake along the megathrust subduction zone fault
generated local tsunami
Japan issued megaquake advisory

read report here https://earthjay.com/?p=12016

#EarthquakeReport #TsunamiReport for M 7.1 #Earthquake offshore of #Japan

megathrust subduction zone earthquake

generated local #Tsunami up to about 40 cm in amplitude

these are three tide gage plots

https://earthquake.usgs.gov/earthquakes/eventpage/us6000nith/executive

#EarthquakeReport for M 5.2 #Earthquake south of #Bakersfield #California

reverse/thrust mechanism (compressional earthquake)
high acceleration (31% g recorded ~8km to the south of the epicenter)

https://earthquake.usgs.gov/earthquakes/eventpage/ci40865184/moment-tensor

tectonic setting in 2016 report https://earthjay.com/?p=3758

#EarthquakeReport for the 11 July '23 M 7.1 and 2 August '24 M 6.8 #Lindol and #Earthquake

M 7.1: extensional (normal) mechanism, deep, intraplate (slab)
M 6.8: compressional (reverse) mechanism, not deep, interface or intraplate (crustal)

report here:https://earthjay.com/?p=11987

#EarthquakeReport for M 6.8 #Gempa #Earthquake offshore of #Mindanao #Philippines

reverse mechanism (compressional) related to the subduction zone (convergent plate boundary)

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

read more in report from the mainshock: https://earthjay.com/?p=11611

#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 (?)

@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 (?)

@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 (?)

@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 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 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 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 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 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 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 #OTD in 2017 M 6.3 #Earthquake in #NewBritain #PapuaNewGuinea

reverse/thrust (compressional) earthquake mechanism
possibly (?) on megathrust subduction zone fault

learn more: https://earthjay.com/?p=5142

#EarthquakeReport for M6.7 #Earthquake offshore of #Macquarie

Possibly right-lateral strike-slip mechanism (?)
Analogy earthquake in 1987

Learn more from 2016 report:
https://earthjay.com/?p=3736

https://earthquake.usgs.gov/earthquakes/eventpage/pt24063000/executive

Red circle = epicenter

#EarthquakeReport for M4.9 #Earthquake offshore #Petrolia northern #California

probably a right-lateral strike-slip earthquake along the Mendocino fault

more about regional tectonics from 2021 report: https://earthjay.com/?p=10125

https://earthquake.usgs.gov/earthquakes/eventpage/nc73997816/executive

#EarthquakeReport for the #OTD in 1700 M9.0 @Earthquake along the #Cascadiasubductionzone offshore of #BritishColumbia #Washington #Oregon #California

geologic evidence for a full margin megathrust subduction zone earthquake
transpacific #tsunami

report
https://earthjay.com/?p=3640

#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 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 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 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 #TsunamiReport for #OTD in 2019 M 7.1 #Gempa #Lindol #Earthquake offshore of #Halmahera in the Molucca Strait

interesting tectonics with opposing subduction zones
generated a local #Tsunami

read report https://earthjay.com/?p=9106

#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

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

reverse (compressional) earthquake mechanism

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