Earthquake sequence in Mayotte since May the 13th 2018
Last update: 19 November 2018 at 08:51 UTC
Since May the 13th 2018, a series of shallow (between 10 and 30 km depth) earthquakes have been recorded near the Mayotte Island with magnitude spanning from 4.2 to 5.8. From the begining of the sequence to June 6th, we have collected 9 eathquakes of magnitude greater or equal to M 5.0.
Due to the bad seismic stations coverage in the region, events of magnitude M < 4 are not detected and location errors for events of magnitude M > 4 can reach about 10 km.
More information can be found on:
- EOST report at www.franceseisme.fr (in French)
- IPGP special web page (in French)
- BRGM special web page (in French)
- USGS seismotectonics information
Since the begining of June, the number of earthquakes increases and many comments collected et EMSC show that part of the population is worried about their safety. Moreover, we have collected some pictures showing small cracks on building.
Recent analysis (ENS - volcanology) seems to show that this crisis is not only seismic and has also a volcanic origin.
Distribution of the 57 earthquakes collected by the EMSC between May the 13th and June 6th in the region of Mayotte. The event west of Comores M5.0 is probably not part of the sequence but it has been felt in Mayotte.
Past regional seismicity in the region with the ISC and EMSC catalog between 1960 and May the 23th 2018.
During this sequence the EMSC has collected more than 8 000 felt reports.
Map of Felt reports for 3 events of the sequence with a magnitude >5 events.
|2018-05-15 15:48 - M5.8||2018-05-20 08:01 - M5.3||2018-05-30 05:54 - M5.0|
(generated with the results of the online questionnaire)
(click to enlarge)
Pictures from eyewitnesses showing that some cracks appear on buildings.