Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

mfcorey1

(11,001 posts)
Tue May 21, 2019, 01:23 PM May 2019

Strange waves rippled around Earth. Now we may know why.


On May 10, 2018, the geologic beasts of the tiny island of Mayotte began to stir. Thousands of earthquakes rattled the French island, which is sandwiched between Africa and Madagascar. Most were minor shakes, but they included a magnitude 5.8 event that struck on May 15, the largest yet recorded in the region's history.

In the midst of this seismic swarm, a strange low-frequency rumble rippled around the world, ringing sensors nearly 11,000 miles away—and baffling scientists.

Now, researchers may have at last found the source of the unexpected activity: the birth of a submarine volcano some 31 miles off Mayotte's eastern shore. Sitting about two miles underwater, the baby volcano stretches nearly half a mile high and extends up to three miles across.

The observations came after French scientists launched a multi-pronged mission to get a better grip on the origin of the ongoing seismic swarm. Coordinated by France's National Center for Scientific Research (CNRS), the work includes surveys from the ship Marion Dufresne co-led by Nathalie Feuillet from the Institut de Physique du Globe de Paris and Stephan Jorry of the French research institute IFREMER.

The data are still preliminary, and many questions remain unanswered as the scientists work to analyze their findings and publish the research in a peer-reviewed journal. In the meantime, the team has issued a joint press release announcing the new volcano and its probable link to the odd throng of earthquakes.

“In light of this discovery, the government is fully mobilized to pursue and deepen our understanding of this exceptional phenomenon and take necessary measures to categorize and prevent any risks it represents,” the agencies say in the release.

Stephen Hicks, a seismologist at Imperial College who previously analyzed Mayotte's strange seismic happenings, adds that the announcement offers some much needed clarity for the island's inhabitants, who have been thoroughly shaken after months of unexplained tremors.


On May 10, 2018, the geologic beasts of the tiny island of Mayotte began to stir. Thousands of earthquakes rattled the French island, which is sandwiched between Africa and Madagascar. Most were minor shakes, but they included a magnitude 5.8 event that struck on May 15, the largest yet recorded in the region's history.

In the midst of this seismic swarm, a strange low-frequency rumble rippled around the world, ringing sensors nearly 11,000 miles away—and baffling scientists.

Now, researchers may have at last found the source of the unexpected activity: the birth of a submarine volcano some 31 miles off Mayotte's eastern shore. Sitting about two miles underwater, the baby volcano stretches nearly half a mile high and extends up to three miles across.

The observations came after French scientists launched a multi-pronged mission to get a better grip on the origin of the ongoing seismic swarm. Coordinated by France's National Center for Scientific Research (CNRS), the work includes surveys from the ship Marion Dufresne co-led by Nathalie Feuillet from the Institut de Physique du Globe de Paris and Stephan Jorry of the French research institute IFREMER.

The data are still preliminary, and many questions remain unanswered as the scientists work to analyze their findings and publish the research in a peer-reviewed journal. In the meantime, the team has issued a joint press release announcing the new volcano and its probable link to the odd throng of earthquakes.

“In light of this discovery, the government is fully mobilized to pursue and deepen our understanding of this exceptional phenomenon and take necessary measures to categorize and prevent any risks it represents,” the agencies say in the release.

Stephen Hicks, a seismologist at Imperial College who previously analyzed Mayotte's strange seismic happenings, adds that the announcement offers some much needed clarity for the island's inhabitants, who have been thoroughly shaken after months of unexplained tremors.

https://www.msn.com/en-us/news/technology/strange-waves-rippled-around-earth-now-we-may-know-why/ar-AABFYnh?li=BBnb7Kz&ocid=mailsignout
9 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Strange waves rippled around Earth. Now we may know why. (Original Post) mfcorey1 May 2019 OP
It's interesting that one volcano caused this lunatica May 2019 #1
Baby picture of the newborn volcano: tblue37 May 2019 #2
Sacre bleu ! Un sonogram ! nt eppur_se_muova May 2019 #3
Awww... it has France's chin. meadowlander May 2019 #4
Kudos to the French. MicaelS May 2019 #5
that's because they actually believe in science... Raster May 2019 #7
Kaiju cometh. Raster May 2019 #6
Very impressive work; the image is amazing. lagomorph777 May 2019 #8
This message was self-deleted by its author geralmar May 2019 #9

lunatica

(53,410 posts)
1. It's interesting that one volcano caused this
Tue May 21, 2019, 01:32 PM
May 2019

There are quite a few active volcanos scattered all over the world. I thought there were a few new ones being created too.

(By the way the first seven paragraphs are repeated so you might want to delete the last seven paragraphs.)

Response to mfcorey1 (Original post)

Latest Discussions»General Discussion»Strange waves rippled aro...