#aftershock
M4.1 earthquake SSE of Hōnaunau-Nāpōʻopoʻo on Hawaiʻi Island likely an aftershock from M6.0 in May
Scientists with the USGS Hawaiian Volcano Observatory say today’s (Aug. 17, 2026) magnitude-4.1 earthquake, located 10 miles south-southeast of Hōnaunau-Nāpōʻopoʻo on the Island of Hawaiʻi was likely an aftershock of the magnitude-6.0 that occurred on May 23, 2026.
Magnitude 3.16 earthquake in Nāpōʻopoʻo is likely an aftershock from the M6 quake on May 22
A magnitude-3.16 earthquake occurred 8 miles south of Hōnaunau-Nāpōʻopoʻo on the Island of Hawaiʻi at a depth of 13 miles below sea level at 8:34 a.m. HST on June 25, 2026.
HVO: Tuesday’s 4.7 Hawaiʻi Island earthquake was similar in origin but unrelated to the 6.0 quake from May 22
The HVO reports Tuesday’s earthquake was similar in origin but unrelated to the magnitude-6 that occurred on May 22 and the magnitude-4.6 that occurred on June 2 on the west side of the island.
Volcano Watch: Aftershock forecasts let you know what to expect after a large earthquake
These forecasts are automatically issued after most magnitude 5 and larger earthquakes in the United States and its territories. The first forecast is issued 20 minutes after the mainshock and they are updated 74 more times during the first year.