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Map showing earthquake epicenters (blue circles) from a shallow seismi

Detailed Description

Map showing earthquake epicenters (blue circles) from a shallow seismic swarm that began on October 23rd, 2020.   Hundreds of earthquakes were recorded beneath the northeastern tip of the Ka‘ōiki fault system, about 1 mile (less than 2 km) west of Nāmakanipaio Campground. These earthquakes occurred in a cluster about 1 mi (2 km) wide and 1–3 mi (2–5 km) below the surface.  The largest single event (red star) was a magnitude-3.5 earthquake on Saturday, October 24th, at 5:08 a.m. local time.


Public Domain.