The tremor occurred on the morning of 11 November near the archipelago of Mayotte, a collection of French islands in the Indian Ocean between Madagascar and Mozambique.<\/p>\n
It is unclear whether it was caused by volcanic activity or a meteor strike, but it was felt by seismometers across the world, from New Zealand to Canada – and even in Hawaii.<\/p>\n
“It doesn’t mean that, in the end, the cause of them is that exotic,” Mr Ekstrom admitted, while acknowledging that the seismic waves were quite unusual.<\/p>\n
![\"\"](\"https:\/\/ariananews.co\/en\/wp-content\/uploads\/2018\/12\/77-1.jpg\")
<\/p>\n
Geologists shared their discovery of the surprisingly low frequency activity on Twitter, with Jamie Gurney, the founder of the UK Earthquake Bulletin, among the first to note the event.<\/p>\n
Mr Gurney was soon joined by Anthony Lomax, who suggested the epicentres for the rumbles were just east of the Mayotte archipelago – but even with the location identified, the cause has remained a mystery.<\/p>\n
A number of possibilities have been suggested, inspired by the fact that – despite the monitoring stations detecting seismic waves – there was no corresponding earthquake felt that morning.<\/p>\n
The low frequency of the waves has been particularly interesting to seismologists.<\/p>\n","protected":false},"excerpt":{"rendered":"
Researchers have tracked the source of the seismic waves to near the island of Mayotte, but still don’t know the cause.<\/p>\n","protected":false},"author":2,"featured_media":1008,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_mat_hreflang_tags":[],"addvideo":"","video_duration":"","farsit":"","target":"0","top_stories":"0","top":"0"},"categories":[198,183],"tags":[281,282],"class_list":["post-1004","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-internet","category-tech","tag-earthquake","tag-seismic-wave"],"acf":{"myctype":"change","target":false,"top_stories":false,"top":false,"farsit":""},"yoast_head":"\n