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Mauna Loa volcano (Big Island, Hawaii): ongoing seismic swarm

mer, 31 mar 2021, 10:59
10:59 AM | AUTORE: MARTIN
Upper part of Mauna Loa SW rift zone (image: HVO)
Upper part of Mauna Loa SW rift zone (image: HVO)
Another series of a seismic swarm occurred beneath the northwest flank of volcano's summit as the Hawaiian Volcano Observatory (HVO) noted.
On 29 March at 02:30 local time the seismic network detected about 130 earthquakes located 42 km W-NW of the volcano.
Most of these earthquakes had been frequent in a cluster about 2 km (1 mile) wide and at depth approx. 6–8 km (3.5–5 miles). The largest recorded event reached magnitude M 2.7.
Mauna Loa is not erupting and clustering of shallow earthquakes in this region does not mean an eruption is imminent.
Source: Hawaiian Volcano Observatory volcano activity update 31 March 2021

News precedente

Fri, 19 Mar 2021, 08:33

Mauna Loa volcano (Big Island, Hawaii): seismic swarm

Upper part of Mauna Loa SW rift zone (image: HVO)
The Hawaiian Volcano Observatory (HVO) reported that a swarm of small earthquakes occurred at 15:46 local time yesterday beneath the southeastern flank of Mauna Loa volcano and northwestern summit of Kilauea volcano at zone known as upper Ka'ōiki. ... Read all
Thu, 11 Mar 2021, 07:34

Mauna Loa volcano (Big Island, Hawaii): earthquake beneath SE flank

Red arrow shows the location of the earthquake M 4.2 yesterday; red frame in the upper right corner of image shows magnitude, depth and date/time of the earthquake (image: HVO)
Seismic network of the Hawaiian Volcano Observatory (HVO) detected a volcano-tectonic earthquake with magnitude M 4.2 at approx. 26 km (16 miles) km depth beneath the southeast flank at 14:21 local time yesterday. The earthquake was located 17 km (11 mile) north-northeast of Pāhala in the vicinity of the Kaʻōiki Pali. ... Read all
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Maunaloa vulcano
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
Stato attuale: inquieto (2 di 5) Eruzioni del vulcano Maunaloa:
1832, 1843, 1849, 1851, 1852, 1855-56, 1859, 1865-66, 1868, 1870(?), 1871, 1872, 1873, 1873-74, 1875, 1876, 1877, 1879, 1880, 1880-81, 1887, 1892, 1896, 1899, 1903, 1907, 1914-15, 1916, 1919, 1926, 1933, 1935-36, 1940, 1950, 1975, 1984, 2022 (Nov-ongoing)
Stile eruttivo tipico
Dominantly effusive.

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Hawaii - Birthplace of Islands
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