In a seismically quiet segment of Alaska’s subduction zone lie faults with structures similar to those of the system that caused the deadly Tohoku earthquake and tsunami.
Hazards & Disasters
NASA Fleet Helps Predict Space Weather
Using 8 years of data collected via spacecraft, scientists produce hindcasts of plasma eruptions from the Sun. These will help improve forecasts.
Quiet Volcanic Activity Changes Speed of Ambient Seismic Waves
Seismic data collected continuously for 4 years could improve understanding of geological structures that underlie Japan’s Izu Oshima volcanic island.
Caribbean Sediment Traced to 1755 Portuguese Quake and Tsunami
Archaeologists digging in Martinique chanced upon the first tsunami deposit from the earthquake found in the New World. The tsunami left a strong trace, it seems, because the wave went up a river.
Deepwater Horizon Dispersant Cleared the Air, New Model Shows
A simulation of oil and gas leakage during the Deepwater Horizon disaster finds that the main chemical dispersant used improved air quality for emergency responders.
Revising an Innovative Way to Study Cascadia Megaquakes
Researchers probe natural environments near subduction zones to decrypt underlying mechanisms of major earthquakes.
Largest Flare of Past 9 Years Erupts from Sun
A massive flare and blast of charged particles toward Earth may disrupt satellites and communications and push auroras toward lower latitudes through tomorrow, according to space weather experts.
Hurricane Irma Tears Across Caribbean, Heads to South Florida
Florida residents prepare for potentially catastrophic winds and flooding.
A Diary of a Storm
When Hurricane Harvey struck Texas more than a week ago, an Eos staff editor based in Houston hunkered down. Here’s her day-by-day account of the storm and its aftermath.
Federal Space Weather Research Could Improve Hazard Preparation
Researchers outline the history of the U.S. government’s involvement in space weather research, from before World War II, through the Space Race, and beyond.
