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Diaporama
Actualités
Recent earthquakes under Loihi volcano (Hawai'i)
lundi, juin 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. ... [details]
lundi, nov. 26, 2012
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. [details]
 

Loihi volcan

Submarine volcano -975 m / - 3,199 ft
United States, Hawaiian Islands, 18.92°N / -155.27°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Loihi livres
Last update: 2 oct. 2018 (earthquake swarm)
Style éruptif tipique: unspecified
Eruptions du volcan Loihi: 1996 
HeureMag. / DepthDistanceLocation
Thu, 15 Nov
Thu, 15 Nov 14:12 UTCM 1.9 / 32.8 km16 km- 20km SSE of Pahala, Hawaii
Wed, 14 Nov
Wed, 14 Nov 13:21 UTCM 1.9 / 38.3 km27 km- 11km SE of Pahala, Hawaii
Mon, 12 Nov
Mon, 12 Nov 19:12 UTCM 2.2 / 35 km17 km- 23km SSE of Pahala, Hawaii
Mon, 12 Nov 16:24 UTCM 1.9 / 29.3 km20 km- 11km NE of Pahala, Hawaii
Sun, 11 Nov
Sun, 11 Nov 20:04 UTCM 1.6 / 31.8 km18 km- 13km ENE of Pahala, Hawaii
Voir tous

Introduction:

Loihi seamount, the youngest volcano of the Hawaiian chain, lies about 35 km off the SE coast of the island of Hawaii. Loihi (which is the Hawaiian word for "long") has an elongated morphology dominated by two curving rift zones extending north and south of the summit. The summit region contains a caldera about 3 x 4 km wide and is dotted with numerous lava cones, the highest of which is about 975 m below the sea surface. The summit platform includes two well-defined pit craters, sediment-free glassy lava, and low-temperature hydrothermal venting. An arcuate chain of small cones on the western edge of the summit extends north and south of the pit craters and merges into the crests of Loihi's prominent rift zones. Deep and shallow seismicity indicate a magmatic plumbing system distinct from that of Kilauea volcano. During 1996, a new pit crater was formed at the summit of the volcano, and lava flows were erupted. Continued volcanism is expected to eventually build a new island at Loihi; time estimates for the summit to reach the sea surface range from roughly 10,000 to 100,000 years.
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Smithsonian / GVP volcano information


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