Weak Magnitude 2.4 Earthquake Detected Near Mayotte

Minor Tremor Recorded Off Mayotte Coast

A weak magnitude 2.4 earthquake was detected northwest of Madagascar, in the vicinity of Mayotte, on October 2, 2025, at 12:25 am GMT+3. The tremor, currently listed as unconfirmed, was first reported by RaspberryShake. Such minor seismic events are common in the region, which has a history of considerable geological activity.

Event Details and Location

The unconfirmed earthquake occurred at an estimated depth of 63 km. Its location northwest of Madagascar places it within the broader seismic zone surrounding Mayotte, a French overseas department. While specific details regarding its exact epicenter are pending further confirmation, the initial report provides the time and magnitude of the event.

Mayotte's Seismic Context

Mayotte is situated in an area characterized by a high level of seismic activity. Since the beginning of 2025, the region has experienced 683 earthquakes with magnitudes up to 3.9. Of these, 133 quakes registered between magnitude 2 and 3, indicating that tremors of this size are not unusual.

The island gained significant attention for its seismic activity starting in May 2018, when an unprecedented seismo-volcanic crisis began. This period included a magnitude 5.9 earthquake on May 15, 2018, the strongest ever recorded in the Comoros area. This crisis led to the discovery of a new underwater volcano, Fani Maoré, located approximately 50 km from the archipelago, which is believed to be responsible for the ongoing seismic and volcanic phenomena.

Impact and Monitoring

Given its weak magnitude of 2.4, this earthquake is unlikely to have been felt by the population of Mayotte. Historically, only seismic events above magnitude 4 are typically perceptible to residents due to the distance of epicenters from the island. The region's seismic and volcanic activity is continuously monitored by networks such as the Réseau de Surveillance Volcanologique et Sismologique de Mayotte (REVOSIMA), coordinated by institutions like the Institut Physique du Globe de Paris (IPGP) and the Bureau de recherches géologiques et minières (BRGM).