A magnitude 8.8 earthquake occurred off Russia's Kamchatka Peninsula due to subduction, a common cause for tsunamis. Tsunami alerts were issued across the Pacific, including Japan, Hawaii, and North America, to warn of potential dangers. The alerts help provide time for evacuations to safer areas. Post-earthquake data collection refines tsunami predictions and warnings, although fortunately, the tsunami waves were not catastrophic this time.
Last Tuesday a magnitude 8.8 earthquake struck off the coast of Russia's Kamchatka Peninsula in a subduction zone, where the Pacific plate is plunging below part of the North American plate.
Tsunami alerts, warnings, advisories were released around the Pacific; some in Japan, Russia, Hawaii, and along the North American coastline.
Warnings are generated if there is the likelihood of tsunami waves arriving that could cause damage, giving people time to evacuate to higher ground.
In the hours after an earthquake, more information is gathered to refine assessments of energy release and tsunami wave tracking.
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