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Magma Intrusion

All articles tagged with #magma intrusion

science1 year ago•5 min saved

"Kīlauea Intrusion: Textbook Example of Dike Propagation"

A recent magma intrusion into Kīlauea's flank prompted the USGS Hawaiian Volcano Observatory to raise the volcano's alert level, with hundreds of earthquakes and high rates of deformation recorded during the event. An interferogram from the Italian Space Agency's satellite confirmed that the intrusion was larger than previous ones and displayed a classic dike-opening pattern. Kīlauea is currently not erupting, but disbursement seismicity and mild inflationary trends continue, while Mauna Loa shows no signs of activity.

via Big Island Now|

#ground-deformation #kilauea #magma-intrusion

natural-disasters1 year ago•9 min saved

"New Insights into Kīlauea's Magma Movement and Eruption Likelihood"

The USGS Hawaiian Volcano Observatory provided detailed information on the recent magmatic intrusion at Kīlauea volcano, which occurred southwest of the summit between January 27 and February 3, 2024. The intrusion led to increased seismicity and ground deformation, with over 700 earthquakes detected on January 31. While the event is currently waning, the volcano remains at an advisory level, and the potential for renewed activity and eruption with little warning still exists. The USGS continues to closely monitor the situation and has outlined possible scenarios for the coming days to weeks.

via Big Island Video News|

#kilauea #magma-intrusion #natural-disasters

natural-disasters1 year ago•4 min saved

Kilauea Volcano: Monitoring Magma Movement and Eruption Likelihood

The USGS Hawaiian Volcano Observatory has detailed the recent magma intrusion at Kīlauea, which prompted the raising of the volcano alert level to WATCH/ORANGE. The intrusion caused earthquake swarms and ground deformation, indicating magma movement from the storage system below Kīlauea summit to the southwest. The alert level has since been lowered to ADVISORY/WATCH, and while there hasn't been an eruption, surface cracks have formed in the Kaʻū Desert of Hawai‘i Volcanoes National Park. Intrusions are a common process for volcanoes, serving as a pressure-release valve for magma reservoirs.

via Big Island Video News|

#earthquake-swarms #kilauea #magma-intrusion

natural-disasters2 years ago•3 min saved

Iceland on High Alert as Volcano Threatens Eruption

Icelandic officials have evacuated the town of Grindavik due to an imminent volcanic eruption on the Reykjanes Peninsula. Cracks in the earth, steam, and seismic activity indicate that magma is likely to reach the surface soon. The Icelandic Meteorological Office has warned of a "significant likelihood" of an eruption in the coming days. The intrusion of magma beneath Grindavik is estimated to be about 10 miles long, and earthquakes continue to rattle the region. This volcanic activity follows previous eruptions in the area, including the Fagradalsfjall volcano in 2021.

via The Washington Post|

#grindavik #iceland #magma-intrusion