Loihi volcano news & activity updates:
Loihi submarine volcano (Hawai'i): increased seismic swarm
Wednesday May 13, 2020 06:26 AM | BY: MARTIN
Earthquakes swarms recorded at Loihi volcano on 11 May (image: @GeoGolfHawaii/twitter)On 10 and 11 May the Hawaiian Volcano Observatory (HVO) recorded increased seismic activity at the submarine volcano.
Beginning about 03:00 local time on 11 May and continuing through the morning on 12 May, HVO detected more than 100 earthquakes beneath the volcano, including 79 magnitude-2 (M2) and 19 magnitude-3 (M3) and above. This is a significant increase above long term background rates of fewer than 3 earthquakes per day at Loihi, generally with magnitudes less than 2. The number of earthquakes peaked at 14 per hour between 13:00 and 14:00 local time on 11 May and decreased thereafter. Since the early morning hours on 12 May, earthquake rates have been less than 4 per hour.
The earthquake swarm is located beneath the southeast rift zone and southeastern flank of Loihi at depths of 11,800-40,682 ft (3,600-12,400 m) below sea level.
There is no indication that a submarine eruption has occurred and there are no significant hazards of concern to the Island of Hawaiʻi at this time.
Source: Hawaiian Volcano Observatory volcano activity update 13 May 2020
Monday, Jun 26, 2017
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. ... [more]