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From: Dan Richter (1:317/3)
To: All
Date: Mon, 15.03.21 13:00
MODIS Pic of the Day 15 March 2021
March 15, 2021 - Eruption at Mt. Etna

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Eruption at Mt. Etna
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On March 12, 2021, Italy’s Mount Etna erupted for the twelfth time in
twenty-five days, sending a large plume of ash about 10 km (32,808
feet) into the atmosphere along with dramatic lava fountaining. The
Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s
Terra satellite acquired a true-color image on that same day which
captured the large ash plume as it drifted eastward over the Ionian
Sea.

There is nothing particularly unusual about Mount Etna flinging lava,
volcanic ash, or molten rocks into the air. The Italian volcano ranks
as one the most active in Europe and has been in a state of eruption
since 2011. This most recent paroxysm, which started on February 16,
has been particularly violent. In February, lava fountains rose as high
as 1.5 kilometers (0.9 miles), about 3 times the height of One World
Trade Center, the tallest building in the United States. Columns of ash
and small rock fragments (called lapilli) rose as high 11 kilometers
(6.8 miles) in altitude. Long lava flows poured down Etna's eastern
flank. Lapilli (rock fragments) and ash have landed in several cities
and villages near the volcano in recent days.

Despite the extreme strombolian activity, the risk to people has been
deemed as small. The Global Disaster Alert and Coordination System
(GDACS) gave the eruption a “green” (low risk) alert, stating that the
event is likely to have a low humanitarian impact. About 2.75 million
live within 100 km (62 mi) of the volcano and 940,000 within 30 km (18
mi).

Image Facts
Satellite: Terra
Date Acquired: 3/12/2021
Resolutions: 1km (358.8 KB), 500m (1008.7 KB), 250m (752.5
KB)
Bands Used: 1,4,3
Image Credit: MO'DIS Land Rapid Response Team, NASA GSFC



https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2021-03-15

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