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Udina volcano (Kamchatka, Russia) activity update: Significant magma intrusion- no eruption imminent

Sunday Jun 09, 2019 13:36 PM | BY: MJFLEGEND

Udina in the foreground with neighbouring volcanoes Ushkovsky, Kamen, Klyuchevskoy and Zimina. Credit: Oleg Volynets, Institute of Volcanology, Petropavlovsk.
Udina in the foreground with neighbouring volcanoes Ushkovsky, Kamen, Klyuchevskoy and Zimina. Credit: Oleg Volynets, Institute of Volcanology, Petropavlovsk.
A recent paper has brought to attention a long-term increase in seismicity under this long-dormant volcano (it is unknown when it last erupted), attributed to new magma intruding into the re-activated plumbing system.

The unrest began in December 2017 and a temporary seismic network was installed in May-July 2018; over 500 earthquakes were detected, centred in an elliptical cluster more than 5km below the surface.

Interestingly, this activity appears to originate from a magma storage zone that also feeds fissure eruptions at nearby Tolbachik (such as in 2012).

While this is a significant development, there is no sign of an impending eruption, and it is unknown if this unrest will lead to an eruption, or when said eruption would happen. It is also unknown what the nature of eruptive activity would be- the typically sensationalist media headlines should be taken with a pinch of salt.
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Previous news
Map of today's active volcanoes
Saturday, Jun 08, 2019
Midagahara (Honshu): JMA raised the alert level from normal to 1 (the lowest level on a 5-level scale) on 30 May due to an increased risk for at the crater. No further details were given. ... [more]
Map of today's active volcanoes
Friday, Jun 07, 2019
Manam (Papua New Guinea): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 . ... [more]
Map of today's active volcanoes
Wednesday, Jun 05, 2019
Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 5 kts in E direction. ... [more]
Map of today's active volcanoes
Tuesday, Jun 04, 2019
Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 . ... [more]

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