A magnitude 3.5 earthquake occurred near the coast of Antigua and Barbuda

The content originally appeared on: Antigua News Room
Graphic shows large earthquake logo over broken earth and Richter scale reading

Light Earthquake Strikes Near Antigua and Barbuda

In the early hours of Thursday, July 4, 2024, a light magnitude 3.5 earthquake occurred in the North Atlantic Ocean, near the coast of Antigua and Barbuda.

The tremor was detected at 3:21 am local time (GMT -4) and had a very shallow depth of 10 km (6 miles).

Despite the proximity, the quake was not felt or reported by residents.

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Earthquake Details:

Magnitude: 3.5
Depth: 10 km
Epicenter Coordinates: 18.335°N, 61.955°W
Proximity: 75 km north of Barbuda Island
Local Time: 3:21 am (GMT -4)
Date and Time: July 4, 2024, 07:21:21 UTC

The European-Mediterranean Seismological Centre (EMSC) was the first to report the quake just four minutes after it occurred.

The earthquake’s epicenter was located 79 km (49 miles) south of Codrington, Barbuda, where very weak shaking might have been experienced. Other nearby locations, such as St. John’s in Antigua, Basseterre in Saint Kitts and Nevis, and various towns in surrounding islands, reported no noticeable shaking.

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Seismic Activity:

Shaking Intensity: III (Weak shaking near the epicenter)
Felt Reports: 0

Nearby Places:

Codrington, Barbuda: 79 km south of epicenter, potential very weak shaking
Gustavia, St. Barthélemy: 106 km southwest, not felt
The Valley, Anguilla: 117 km west, not felt
Philipsburg, Sint Maarten: 120 km west, not felt
St John’s, Antigua: 136 km south, not felt
Basseterre, Saint Kitts and Nevis: 141 km southwest, not felt

The closest larger town where the earthquake might have been felt was Codrington, a small town with approximately 1,300 inhabitants. Given the light magnitude and shallow depth, it is unlikely that any damage occurred.

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The EMSC also noted that the nearest active volcano, Liamuiga, is located 140 km (87 miles) from the epicenter. Weather conditions at the time included overcast clouds, a temperature of 28.1°C (83°F), and an easterly wind at 9 m/s (17 knots).

Residents and authorities are reminded to stay informed about seismic activities and to follow any guidance provided by local emergency management agencies.

For more details and updates, including interactive maps and seismograms, visit the EMSC website.

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