Mag. 4.2 earthquake felt in Antigua


Mag. 4.2 earthquake – Caribbean Sea, 24 km south of Barbuda Island, Barbuda, Antigua and Barbuda, on Sunday, Jun 9, 2024, at 05:03 am (Antigua time) – 3 hours 27 minutes ago

Updated: Jun 9, 2024 12:30 GMT – just now

I felt this quake

A moderate magnitude 4.2 earthquake occurred in the Caribbean Sea near Barbuda Island island, Antigua and Barbuda, in the early morning of Sunday, Jun 9, 2024 at 5.03 am local time (America/Antigua GMT -4). The quake had a shallow depth of 64 km (40 mi) and was reported felt by some people near the epicenter.

Mag. 4.2 earthquake - Caribbean Sea, 24 km south of Barbuda Island, Barbuda, Antigua and Barbuda, on Sunday, Jun 9, 2024, at 05:03 am (Antigua time)

Moderate magnitude 4.2 earthquake at 64 km depth

9 Jun 09:15 UTCFirst to report: EMSC after 12 minutes.
9 Jun 09:15: Now using data updates from USGS

I didn’t feel it

I felt this quake


Date & timeJun 9, 2024 09:03:19 UTC – 3 hours 27 minutes ago
Local time at epicenterSunday, Jun 9, 2024, at 05:03 am (America/Antigua GMT -4)
StatusConfirmed (manually revised)
Depth64 km
Epicenter latitude / longitude17.4555°N / 61.874°W Antigua & BarbudaAlso near:  Saint Kitts and Nevis 77 km (48 mi) away |  Montserrat 79 km (49 mi) away
Seismic antipode17.4555°S / 118.126°E Australia
Shaking intensityIII Weak shaking near epicenter
Felt2 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoNevis Peak (82 km / 51 mi)
Weather at epicenter at time of quakeBroken Clouds  26.4°C (79 F), humidity: 74%, wind: 7 m/s (14 kts) from ESE
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | about seismic energy


The closest larger town where the quake might have been felt is St John’s, the capital of 

Antigua and Barbuda with 24,000 inhabitants, in 37 km (23 mi) distance south of the epicenter. People likely experienced weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of 

Anguilla, Valley, 151 km (94 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.
The following table shows some of the places that might have been affected (or not) by the shaking.

20 km (13 mi)N of epicenterCodrington(pop: 1,330)III: WeakBarbuda Antigua & Barbuda
37 km (23 mi)S of epicenterSt John’s(pop: 24,200)III: WeakParish of Saint John Antigua & Barbuda
44 km (27 mi)S of epicenterAll Saints(pop: 2,530)III: WeakParish of Saint Peter Antigua & Barbuda
82 km (51 mi)SW of epicenterBrades(pop: 1000)II: Very weakParish of Saint Peter Montserrat
86 km (53 mi)SW of epicenterFig Tree(pop: 2,920)II: Very weakSaint John Figtree St. Kitts & Nevis
92 km (57 mi)W of epicenterBasseterre(pop: 12,900)II: Very weakSaint George Basseterre St. Kitts & Nevis

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  1. The jolt was definitely felt in St. John’s. All the more reason to be prepared and thankful 🙏 that it wasn’t worse than it was.


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