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Light mag. 4.2 earthquake - Caribbean Sea, 25 km southwest of Basseterre, St. Kitts & Nevis, on Wednesday, Aug 17, 2022 at 1:16 pm (GMT -4) -

Light mag. 4.2 earthquake - Caribbean Sea, 25 km southwest of Basseterre, St. Kitts & Nevis, on Wednesday, Aug 17, 2022 at 1:16 pm (GMT -4) Light mag. 4.2 earthquake - Caribbean Sea, 25 km southwest of Basseterre, St. Kitts & Nevis, on Wednesday, Aug 17, 2022 at 1:16 pm (GMT -4)

Light magnitude 4.2 earthquake at 156 km depth

17 Aug 17:23 UTC: First to report: VolcanoDiscovery after 8 minutes.
17 Aug 17:24: Now using data updates from EMSC
18 Aug 14:14: Now using data updates from USGS
Update Wed, 17 Aug 2022, 17:30

Moderate 4.5 quake hits near Basseterre, Saint George Basseterre, St. Kitts & Nevis

4.5 quake 17 Aug 1:16 pm (GMT -4)
4.5 quake 17 Aug 1:16 pm (GMT -4)
Just 14 minutes ago, a 4.5-magnitude earthquake struck near Basseterre, Saint George Basseterre, St. Kitts & Nevis. The tremor was recorded around noon on Wednesday, August 17th, 2022, at 1:16 pm local time, at an intermediate to considerable depth of 167 km below the surface.
The event was filed by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 4.5 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Newcastle (pop. 490) located 16 km from the epicenter, Monkey Hill (pop. 590) 17 km away, Basseterre (pop. 12,900) 17 km away, Cayon (pop. 790) 17 km away, Cotton Ground (pop. 380) 20 km away, Nicola Town (pop. 2,100) 20 km away, Trinity (pop. 1,700) 22 km away, Market Shop (pop. 2,600) 23 km away, Charlestown (pop. 1,500) 24 km away, Fig Tree (pop. 2,900) 24 km away, Middle Island (pop. 2,300) 26 km away, Dieppe Bay Town (pop. 590) 27 km away, Saint Paul's (pop. 2,500) 29 km away, Sandy Point Town (pop. 780) 30 km away, Gustavia (pop. 6,000) 69 km away, Saint John (pop. 24,200) 81 km away, Philipsburg (pop. 1,400) 91 km away, and Marigot (pop. 5,700) 98 km away. In El Valle (pop. 2,000, 110 km away), the quake was probably not felt.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeAug 17, 2022 17:16:15 UTC -
Local time at epicenterWednesday, Aug 17, 2022 at 1:16 pm (GMT -4)
StatusConfirmed
Magnitude4.2
Depth155.6 km
Epicenter latitude / longitude17.0959°N / 62.8342°W (Caribbean Sea, St. Kitts & Nevis)
Antipode17.096°S / 117.166°E
Shaking intensityWeak shaking
Felt3 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoNevis Peak (28 km / 17 mi)
Nearby towns and cities23 km (15 mi) SSW of Boyd’s (pop: 591) | Show on map | Quakes nearby
23 km (15 mi) W of Charlestown (pop: 1,540) | Show on map | Quakes nearby
24 km (15 mi) SSW of Trinity (pop: 1,690) | Show on map | Quakes nearby
24 km (15 mi) WSW of Cotton Ground (pop: 381) | Show on map | Quakes nearby
25 km (15 mi) W of Fig Tree (Church Ground) (pop: 2,920) | Show on map | Quakes nearby
25 km (16 mi) SSW of Basseterre (pop: 12,900) | Show on map | Quakes nearby
26 km (16 mi) S of Middle Island (pop: 2,330) | Show on map | Quakes nearby
28 km (17 mi) SSW of Monkey Hill (pop: 592) | Show on map | Quakes nearby
28 km (17 mi) W of Market Shop (Stonyhill) (pop: 2,570) | Show on map | Quakes nearby
29 km (18 mi) WSW of Newcastle (pop: 493) | Show on map | Quakes nearby
29 km (18 mi) S of Sandy Point Town (pop: 780) | Show on map | Quakes nearby
89 km (55 mi) S of Gustavia (St. Barthélemy) (pop: 5,990) | Show on map | Quakes nearby
105 km (65 mi) W of Saint John (Antigua & Barbuda) (pop: 24,200) | Show on map | Quakes nearby
106 km (66 mi) SSE of Philipsburg (Sint Maarten) (pop: 1,400) | Show on map | Quakes nearby
111 km (69 mi) SSE of Marigot (St. Martin) (pop: 5,700) | Show on map | Quakes nearby
127 km (79 mi) S of El Valle (Anguilla) (pop: 2,040) | Show on map | Quakes nearby
170 km (105 mi) NW of Basse Terre (Guadeloupe) (pop: 11,500) | Show on map | Quakes nearby
110 km (69 mi) W of Antigua Island (pop: 69,000) | Show on map | Quakes nearby
127 km (79 mi) S of Anguilla Island (pop: 13,500) | Show on map | Quakes nearby
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
4.2156 kmSt. Kitts & Nevis: 23 Km SSW of Trinity, Saint Kitts And NevisUSGS
4.2156 kmSt. Kitts & Nevis: Leeward IslandsRaspberryShake
4.3144 kmSt. Kitts & Nevis: Near Baie-MahaultRENASS
4.5167 kmSt. Kitts & Nevis: 4.5 SAINT KITTS AND NEVIS REGIONEMSC

Seismograms

Seismic station: North Barbuda Island (ANWB/CU network) | Distance from quake: 128 km / 80 mi | Show on map | Station Info
Seismic station North Barbuda Island: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Saint-Martin Galisbay (111.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Tremblement et bruit | 2 users found this interesting.  
Koolbaai (110.4 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s : I was on my couch and felt it swinging twice and heard creaking in the building | 2 users found this interesting.  
sint maarten (110 km NNW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s

Earlier earthquakes in the same area

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