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Minor mag. 3.1 earthquake - Caribbean Sea, 49 km southeast of Basseterre, St. Kitts & Nevis, on Monday, March 15, 2021 at 04:14 GMT

Minor magnitude 3.1 earthquake at 173 km depth

Earthquake details

Date & time	Mar 15, 2021 04:14:01 UTC
Local time at epicenter
Status	Confirmed
Magnitude	3.1
Depth	173.4 km
Epicenter latitude / longitude	17.04421°N / 62.35116°W (Caribbean Sea, St. Kitts & Nevis)
Antipode	17.044°S / 117.649°E
Shaking intensity	Not felt
Felt
Primary data source	RENASS (Réseau National de Surveillance Sismique (RéNaSS))
Nearest volcano	Nevis Peak (27 km / 17 mi)
Nearby towns and cities	25 km (16 mi) ESE of Gingerland (pop: 493) \| Show on map \| Quakes nearby 26 km (16 mi) ESE of Market Shop (Stonyhill) (pop: 2,570) \| Show on map \| Quakes nearby 28 km (18 mi) ESE of Fig Tree (Church Ground) (pop: 2,920) \| Show on map \| Quakes nearby 30 km (19 mi) ESE of Charlestown (pop: 1,540) \| Show on map \| Quakes nearby 49 km (30 mi) SE of Basseterre (pop: 12,900) \| Show on map \| Quakes nearby 55 km (34 mi) W of Saint John (Antigua & Barbuda) (pop: 24,200) \| Show on map \| Quakes nearby 109 km (67 mi) SSE of Gustavia (St. Barthélemy) (pop: 5,990) \| Show on map \| Quakes nearby 132 km (82 mi) SE of Philipsburg (Sint Maarten) (pop: 1,400) \| Show on map \| Quakes nearby 134 km (83 mi) NNW of Basse Terre (Guadeloupe) (pop: 11,500) \| Show on map \| Quakes nearby 138 km (86 mi) SE of Marigot (St. Martin) (pop: 5,700) \| Show on map \| Quakes nearby 59 km (37 mi) W of Antigua Island (pop: 69,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	2.8 x 10⁹ joules (783 kilowatt hours, equivalent to 0.674 tons of TNT) \| about seismic energy

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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.	Depth	Location	Source
3.1	173 km	Near Baie-Mahault, St. Kitts & Nevis	RENASS

Most recent quakes Top 20 past 24 hrs

Seismograms

Seismic station: Olveston, Montserrat (OLV1/MC network) | Distance from quake: 35 km / 22 mi | Show on map | Station Info

Seismic station Olveston, Montserrat: 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. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Olveston, Montserrat: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Olveston, Montserrat: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: St Eustatius, Netherlands Antilles Seismic Network (SEUS/NA network) | Distance from quake: 83 km / 52 mi | Show on map | Station Info

Seismic station St Eustatius, Netherlands Antilles Seismic Network: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station St Eustatius, Netherlands Antilles Seismic Network: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station St Eustatius, Netherlands Antilles Seismic Network: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: St Maarten, Netherlands Antilles Seismic Network (SMRT/NA network) | Distance from quake: 136 km / 84 mi | Show on map | Station Info

Seismic station St Maarten, Netherlands Antilles Seismic Network: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station St Maarten, Netherlands Antilles Seismic Network: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station St Maarten, Netherlands Antilles Seismic Network: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Morne la Rosette, Martinique, France (FDFM/G network) | Distance from quake: 287 km / 178 mi | Show on map | Station Info

Seismic station Morne la Rosette, Martinique, France: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Morne la Rosette, Martinique, France: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Morne la Rosette, Martinique, France: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Obispado, Ponce (OBIP/PR network) | Distance from quake: 465 km / 289 mi | Show on map | Station Info

Seismic station Obispado, Ponce: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Obispado, Ponce: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Obispado, Ponce: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

There are no user reports for this quake.

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