一层厚厚的地壳可能盖住了萨摩亚火山柱，抑制了火山活动3000万年，这就解释了萨摩亚火山链上一个奇怪的裂缝。
American Samoa
Posted inResearch Spotlights
Tracking a Disappearing Mantle Plume in Ancient Samoa
A thick portion of Earth’s crust may have capped the Samoan plume and suppressed volcanism for 30 million years, explaining a curious gap along the Samoan chain.
Posted inNews
American Samoa’s Sinking Land Speeds Up Sea Level Rise
A new interactive tool is helping residents understand how their lands and homes are at risk.
Posted inEditors' Highlights
New Insights on Atmospheric Waves from the Hunga Volcanic Eruption
High temporal resolution geostationary imagery reveals new details of atmospheric waves generated by the January 2022 Hunga volcanic eruption and provides a chronology of the eruption sequence.
Posted inEditors' Highlights
What American Samoan Corals Tell About El Niño’s History
Samoan corals record how patterns of warm/cool and more/less salty in the equatorial Pacific changed in space and time over the last 500 years.