#loihi

There is no tsunami expected following a 5.1 earthquake reported at the Loihi Seamount, south of the Big Island. The quake occurred at 5:49 p.m. on Tuesday, Aug. 11, 2026.

The HVO issued as status update saying there have been over 70 earthquakes so far in this swarm, with 32 events greater than magnitude 2 and two events greater than magnitude 4. The largest earthquake has been a magnitude-4.3 event that occurred Saturday at 12:05 p.m. HST, at a depth of 5.8 km (3.6 mi) below sea level and 4.8 km (3.0 mi) below the volcano’s summit.

There is no tsunami expected following a 4.1 magnitude earthquake reported at 6:39 p.m. HST on Sunday, March 26 on Kamaʻehuakanaloa (Lō‘ihi) volcano. The earthquake was preceded by M3.1 and M3.2 earthquakes on Kamaʻehuakanaloa occurring over the past 12 hours.

Increased seismic activity beneath Kamaʻehuakanaloa “Lōʻihi” seamount is likely the result of magma movement beneath the surface, according to scientists with the Hawaiian Volcano Observatory.

Many people in Kaʻū have noticed the swarm of earthquakes taking place during the past few years. These earthquakes are happening in a zone that is 29-40 km (18-25 miles) beneath Pāhala and extends south about 10 km (6 miles) offshore. Some of the largest earthquakes from this region have been felt throughout the Island of Hawai‘i.

There is no tsunami threat to Hawaii after a preliminary magnitude 4.0 earthquake reported this morning at the Loihi Seamount south of the Big Island of Hawaii.

This month alone (as of June 22), there have been 51 located earthquakes in the Lō‘ihi region.

Today’s Big Island earthquake occurred about 43 miles southwest of Lō‘ihi, and was not caused by activity on that submarine volcano. The depth, location, and recorded seismic waves of the earthquake suggest a source due to bending of the oceanic plate from the weight of the Hawaiian island chain.