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Map of American Samoa volcano-monitoring network.

July 2023 (approx.)

Detailed Description

Map of the American Samoa volcano-monitoring network (top). Data from Wake Island hydrograph (located about 4,500 km, or 2,900 miles, northwest of Taʻū Island) shows the general trend in the number of events during the 2022 earthquake swarm (bottom left). Locations for larger earthquakes (M2.5 and greater) are available starting August 20, 2022 (bottom right). Data are from the USGS National Earthquake Information Center.


Public Domain.