Eruption continues at underwater volcano near Mayotte, Indian Ocean

eruption-continues-at-underwater-volcano-near-mayotte-indian-ocean

Eruption at a newly-discovered underwater volcano, located about 50 – 60 km (31 – 37 miles) east of Mayotte, Indian Ocean continues with increased seismicity and associated deformations.

During the month of August, REVOSIMA detected 361 volcano-tectonic earthquakes detected, 198 long-period earthquakes, and 10 very long-period earthquakes.

Of those, only 2 were felt by residents of Mayotte — M4.1 on August 3 and M3.8 on August 26.1

The main seismic activity is still concentrated 5 to 15 km (3 – 9 miles) east of Petite-Terre, at depths of 20 to 50 km (12 – 31 miles), REVOSIMA reports.

Surface movements measured by GPS stations in Mayotte since July 1, 2018, indicate:

a) an overall movement of the GPS stations from Mayotte to the east of approximately 21 to 25 cm (8 – 10 inches),
b) subsidence of approximately 10 to 19 cm (4 – 7.5 inches) depending on their location on the island. Since the end of 2020, deformations have become negligible.

The volume of erupted magma is estimated at approximately 6.55 km3 (1.6 miles3) as of April 2021.

References:

1 Bulletin de l’activité sismo-volcanique à Mayotte – No.33 – September 1, 2021 – REVOSIMA – IPGP

Featured image credit: REVOSIMA

If you value what we do here, create your ad-free account and support our journalism.

Share:

Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, select the level of your support and register your account.

Your support makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.

All our supporters can browse the website without ads, allowing much faster speeds and a clean interface. Your comments will be instantly approved and you’ll have a direct line of communication with us from within your account dashboard. You can suggest new features and apps and you’ll be able to use them before they go live.

You can choose the level of your support.

Stay kind, vigilant and ready!

$5 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$200 /year

You can also support us by sending us a one-off payment using PayPal:

Leave a reply