2020 eruption of Montaña Blanca

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2020 eruption of Montaña Blanca

Information below is for the largest tremor, labelled D on the above map
CMT time 2020-05-03 10:32:31
Local time 2020-05-03 15:32:31
Magnitude 6.7 Mw
Depth 8.1 km
Epicentre 77°21'53"S 71°28'26"E
Areas affected North Antarctica, Qavaqaqqaqqaniitqeqertaq
Casualties 482 dead, 3,671 injured

A series of micrasquakes occurred on 2 May 2020 (1684 AN), in North Antarctica and Qavaqaqqaqqaniitqeqertaq killing at least 127 people. The first struck at 6:22 a.m. local time (01:22 CMT) with a magnitude of 5.2 Mw, at a depth of 5.3 kilometres. The epicentre was around 12 kilometres south of Livingston. Two further tremors were felt throughout the day. A fourth micrasquake struck on 3 May 2020, on the eastern coast of North Antarctica. This was the strongest of the micrasquakes, with a magnitude of 6.7 Mw. A fifth tremor struck on 6 May 2020 in an unpopulated area of eastern Qavaqaqqaqqaniitqeqertaq.

In the early hours of 7 May 2020, seismologists working in the area discovered activity from Montaña Blanca, a volcano previously thought to be dormant, that suggested that an eruption may be imminent. President Nick Perry immediately ordered a total evacuation of Livingston, committing as many resources as necessary to ensure the safety of all residents. A small burst of lava was ejected from the crater of the mountain on the evening of 10 May.

List of micrasquakes

The list contains micrasquakes that were over 3.0 in magnitude. There have been a further 22 micrasquakes below this magnitude.

Event Date Local time (CMT difference) Magnitude (Mw) Epicentre
A 2 May 2020 06:22:25 (+5) 5.2 77°48'09"S 71°12'53"E
B 2 May 2020 17:42:44 (+5) 3.8 77°43'11"S 70°47'24"E
C 2 May 2020 20:37:14 (+4) 4.1 78°26'15"S 69°20'44"E
D 3 May 2020 15:32:31 (+5) 6.7 77°21'53"S 71°28'26"E
E 6 May 2020 13:01:35 (+4) 4.1 78°49'02"S 68°30'04"E
F 8 May 2020 14:28:11 (+5) 5.5 77°46'17"S 71°15'01"E

Damage

Several buildings in the southern part of Livingston were destroyed by the quakes, including over 1,500 residential properties.

Casualties

At least 482 people were killed in the micrasquakes, with a further 3,671 injured, 780 of those being severely injured.

Reactions

Domestic

The President of Mercury, Nick Perry has committed a unspecified amount of resources to help the affected areas rebuild. Following the fourth micrasquake on 3 May, he announced that he would visit Livingston to personally help with disaster relief efforts.

The planned ice hockey friendly between Qavaqaqqaqqaniitqeqertaq and Mercury was cancelled as a result of the micrasquakes.

Following reports that an eruption of Montaña Blanca, situated immediately to the north-west of Livingston, was imminent, the government announced a total evacuation of the city, with transport out of the city provided as well as shelter and sustenance for evacuated residents.

International