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Hawaii quake likely not volcanic Posted on
Citation: Sever, M., 2021, Hawai’i quake likely not volcanic, Temblor, http://doi.org/10.32858/temblor.186
When earthquakes strike the Big Island of Hawai’i, most people assume they’re related to magma movement beneath Kīlauea or Mauna Loa, the twoo active volcanic centers. But occasionally, earthquakes can surprise us. That’s what happened with the magnitude-5.2 quake that struck on July 5 north of the Waipi’o Valley, far from both volcanoes. Shaking was felt all over the island and throughout the Hawaiian Island chain, including 160 miles (about 260 kilometers) away in Honolulu and even in Kaua’i. No tsunami warning was issued, and none occurred. No damage or injuries have been reported.
Dispatches from AGU
The Fall Meeting of the American Geophysical Union (AGU) may not look much like normal this year especially since I’m writing this from my home office in Portland, Oregon, rather than the media room in the Moscone Center. But that doesn’t mean there aren’t tons of exceptional research findings being presented. Today, Friday, Dec. 11, I found dozens of posters and talks I wanted to explore. Below, you’ll find a few highlighted, in case you missed them.
Cascading hazards
Several sessions today focused on the idea of cascading hazards, both predicting them and building community resilience to them. Cascading hazards, also known as compound hazards, concurrent or consecutive hazards, are natural hazards that build upon one another think floods caused by hurricanes or fires caused by earthquakes breaking a gas line. The terms also sometimes incorporate the built environment, like water pipelines, communications fiber optic cables or power