for along the Tonga plate boundary

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

earthquake.usgs.gov/earthquake

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

for in 2019 M 8.0 in

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

learn more:
earthjay.com/?p=8541

for in 2017 M6.2 & M6.3 couplet in

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

learn more earthjay.com/?p=5345

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