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Loihi volcan

Mise à jour: 3 déc.. 2022 19:46 GMT -
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)
Last update: 20 juil. 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)

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Style éruptif tipique: unspecified
Eruptions du volcan Loihi: 1996 

Derniers séismes proches

HeureMag. / ProfondeurDistance/Lieu
samedi, 3 décembre 2022 GMT (3 séismes)
3 déc. 2022 05:57 (GMT -10) (3 déc.. 2022 15:57 GMT)
2.7

30 km
35 km (22 mi)
9 Km E of Pāhala, Hawaii
3 déc. 2022 05:49 (GMT -10) (3 déc.. 2022 15:49 GMT)
2.2

28 km
27 km (17 mi)
13 Km ESE of Pāhala, Hawaii
3 déc. 2022 03:32 (GMT -10) (3 déc.. 2022 13:32 GMT)
2.7

34 km
20 km (12 mi)
18 Km E of Naalehu, Hawaii
jeudi, 1 décembre 2022 GMT (1 séisme)
30 nov. 2022 22:02 (GMT -10) (1 déc.. 2022 08:02 GMT)
3.7

36 km
37 km (23 mi)
2 Km SW of Pāhala, Hawaii
mardi, 29 novembre 2022 GMT (1 séisme)
29 nov. 2022 03:26 (GMT -10) (29 nov.. 2022 13:26 GMT)
4.0

32 km
34 km (21 mi)
9 Km E of Pāhala, Hawaii
jeudi, 1 décembre 2022 GMT (1 séisme)
30 nov. 2022 22:02 (GMT -10) (1 déc.. 2022 08:02 GMT)
3.7

36 km
37 km (23 mi)
2 Km SW of Pāhala, Hawaii
mardi, 29 novembre 2022 GMT (1 séisme)
29 nov. 2022 03:26 (GMT -10) (29 nov.. 2022 13:26 GMT)
4.0

32 km
34 km (21 mi)
9 Km E of Pāhala, Hawaii

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


See also: Sentinel hub | Landsat 8 | NASA FIRMS
Actualités
mer., 20 juil. 2022, 14:00

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
lun., 18 juil. 2022, 18:37

Kama’ehuakanaloa submarine volcano (Hawai'i): seismic swarm

Swarm distribution under Kama’ehuakanaloa submarine volcano (image: HVO)
An elevated seismic activity has been registered beneath the submarine volcano by the Hawaiian Volcano Observatory (HVO) instruments starting about 02:00 local time on 16 July. ... Read all
Actualités
mer., 20 juil. 2022, 14:00

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
lun., 18 juil. 2022, 18:37

Kama’ehuakanaloa submarine volcano (Hawai'i): seismic swarm

Swarm distribution under Kama’ehuakanaloa submarine volcano (image: HVO)
An elevated seismic activity has been registered beneath the submarine volcano by the Hawaiian Volcano Observatory (HVO) instruments starting about 02:00 local time on 16 July. ... Read all
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