Geophysical Events
Geophysical Event

M 7.1 Loyalty Islands

May 20, 2023 · 01:50 UTC
M 7.1 Loyalty Islands
Magnitude
M 7.1
Location
southeast of the Loyalty Islands
Depth
27.3 km
Coordinates
-23.042, 170.560

A magnitude 7.1 earthquake occurred 23 hours after a M7.7 earthquake and was located approximately 33 km to the west of the mainshock. There are no reports of damage or injuries from this aftershock.

Shakemap

Shakemap

ShakeMap, developed by the USGS, facilitates communication of earthquake information beyond just magnitude and location. By rapidly mapping out earthquake ground motions, ShakeMap portrays the distribution and severity of shaking.

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Did You Feel It

Did You Feel It

The USGS collects information from people who felt an earthquake and creates maps that show what people experienced and the extent of the damage.

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Aftershock

Aftershocks, smaller earthquakes that occur in the same general area during the days to years following a larger event or "mainshock."

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Earthquake Browser

Earthquake Browser

Explore millions of earthquakes on a Google map. View epicenters in 2D, or rotate through hypocenters in 3D. Options allow changing Time, Magnitude, Depth, and more.

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M 7.1 Loyalty Islands

Teachable Moment

Teachable Moment presentations capture that unplanned opportunity to bring knowledge, insight, and critical thinking to the classroom following a newsworthy earthquake. 12 slide Powerpoint presentation (zipped ppt 29 MB / pdf 1.10 MB)

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