Figure 1. The location and focal mechanisms of earthquakes that occurred on the Big Island on the night of May 22, 2026. The focal mechanism shows that the magnitude 6.0 mainshock is associated with reverse faulting. The depth, location, and faulting mechanism of the magnitude 6.0 event bear similarities to the magnitude 5.5 earthquake of May 8, 1991, shown in the inset. Satellite image: Google Earth. Earthquake hypocenters: USGS Earthquake Catalog. Credit: Wang, 2026, CC BY-NC-ND 4.0

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Figure 1. The location and focal mechanisms of earthquakes that occurred on the Big Island on the night of May 22, 2026. The focal mechanism shows that the magnitude 6.0 mainshock is associated with reverse faulting. The depth, location, and faulting mechanism of the magnitude 6.0 event bear similarities to the magnitude 5.5 earthquake of May 8, 1991, shown in the inset. Satellite image: Google Earth. Earthquake hypocenters: USGS Earthquake Catalog. Credit: Wang, 2026, CC BY-NC-ND 4.0

Figure 1. The location and focal mechanisms of earthquakes that occurred on the Big Island on the night of May 22, 2026. The focal mechanism shows that the magnitude 6.0 mainshock is associated with reverse faulting. The depth, location, and faulting mechanism of the magnitude 6.0 event bear similarities to the magnitude 5.5 earthquake of May 8, 1991, shown in the inset. Satellite image: Google Earth. Earthquake hypocenters: USGS Earthquake Catalog. Credit: Wang, 2026, CC BY-NC-ND 4.0

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