Loihi volcano, United States, Hawaiian Islands: news & activity updates

Kama'ehuakanaloa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 13 July-19 July 2022 (Continuing Activity)

An earthquake swarm began at Kama'ehuakanaloa at about 0200 on 16 July and was characterized by seismic tremor accompanied by pulses of seismic energy every 15-20 seconds. The pattern of elevated seismicity continued through at least 1453 on 17 July, the posting time of the HVO's information statement. The report also noted that around 24 earthquakes in the M 1.8-3 range were recorded during 0130-0600 on 17 July. Read all

Loihi submarine volcano (Hawai'i): earthquake M 4.9 today

Seismic instruments of the Hawaiian Volcano Observatory (HVO) detected a volcano-tectonic earthquake with magnitude M 4.9 at 12 km depth centered about 42 km southeast of Nā'ālehu at 01:32 local time today. Read all

Loihi submarine volcano (Hawai'i): earthquake M 4 yesterday

Seismic instruments of the Hawaiian Volcano Observatory (HVO) detected a volcano-tectonic earthquake with magnitude M 4 at 11 km depth beneath the Lō'ihi seamount at 18:44 local time yesterday. Read all

Loihi submarine volcano (Hawai'i): increased seismic swarm

On 10 and 11 May the Hawaiian Volcano Observatory (HVO) recorded increased seismic activity at the submarine volcano. Read all

Loihi submarine volcano (Hawai'i): earthquake swarms might indicate ongoing or coming eruption

Since late May, the volcano hidden beneath the Pacific south of Big Island has been showing markedly increased seismic activity. Several earthquake swarms were detected under the volcano. Read all

Magnitude 4.2 earthquake detected at Loihi

A magnitude 4.2 earthquake was detected at Loihi volcano on 25 November. We will wait and see if the Hawaiian Volcano Observatory has any more information on this.

Loihi volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 12 September-18 September 2001 (New Activity / Unrest)

An earthquake swarm occurred at Loihi during 10-11 September and two 13 September earthquakes may have also been part of the swarm. The two later earthquakes occurred at 0311 and 0839 and had magnitudes of 4.9 and 4.4, respectively. Most of the earthquakes from 10-13 September were ~12 km deep and located slightly S of the summit of the volcano. Read all

Loihi volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 5 September-11 September 2001 (New Activity / Unrest)

On 10 September an earthquake swarm began at Loihi. The swarm began with a M 5 earthquake and was followed by M 3.5-4.5 earthquakes until at least 11 September. This was the most severe swarm at Loihi since July 1996, when the summit collapsed. Read all