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Moderate mag. 4.9 earthquake - North Pacific Ocean, 96 km south of San Salvador, El Salvador, on 2021-07-23 22:51:19

Moderate magnitude 4.9 earthquake at 34 km depth

24 Jul 04:55 UTC: First to report: VolcanoDiscovery after 4 minutes.
24 Jul 04:56: Now using data updates from INETER
24 Jul 05:21: Magnitude recalculated from 4.8 to 4.9. Hypocenter depth recalculated from 27.0 to 34.0 km (from 16.8 to 21 mi). Epicenter location corrected by 1.8 km (1.1 mi) towards NE.

Earthquake details

Date & time	Jul 24, 2021 04:51:19 UTC
Local time at epicenter	2021-07-23 22:51:19
Status	Confirmed
Magnitude	4.9
Depth	34.0 km
Epicenter latitude / longitude	12.878°N / 88.873°W (North Pacific Ocean, El Salvador)
Antipode	12.878°S / 91.127°E
Shaking intensity	Light shaking
Felt	4 reports
Primary data source	INETER
Nearest volcano	Taburete (74 km / 46 mi)
Nearby towns and cities	57 km (35 mi) SW of Puerto El Triunfo (pop: 19,100) \| Show on map \| Quakes nearby 84 km (52 mi) S of San Vicente (pop: 41,500) \| Show on map \| Quakes nearby 93 km (58 mi) SSE of San Marcos (pop: 54,600) \| Show on map \| Quakes nearby 94 km (58 mi) S of Cojutepeque (pop: 48,400) \| Show on map \| Quakes nearby 95 km (59 mi) SSE of Ilopango (pop: 38,900) \| Show on map \| Quakes nearby 96 km (60 mi) SSE of San Salvador (pop: 526,000) \| Show on map \| Quakes nearby 97 km (60 mi) SSE of Antiguo Cuscatlan (Antiguo Cuscatlán) (pop: 33,800) \| Show on map \| Quakes nearby 97 km (60 mi) SSE of Soyapango (pop: 329,700) \| Show on map \| Quakes nearby 99 km (62 mi) SSE of Delgado (pop: 71,600) \| Show on map \| Quakes nearby 99 km (62 mi) SSE of Santa Tecla (pop: 124,700) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 29°C (84 F), humidity: 77%, wind: 4 m/s (7 kts) from W
Estimated seismic energy released	1.4 x 10¹² joules (392 megawatt hours, equivalent to 338 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
4.9	34 km	42 Km Al Sur De Delta Del Rio Lempa, El Salvador	INETER
4.6	50 km	El Salvador	GFZ
4.6	83 km	EL SALVADOR	EMSC
4.6	59 km	53 Km SW of Puerto El Triunfo, El Salvador	USGS
4.3	32 km	112 Km Al Oeste De Leon, Nicaragua.	RSN

Most recent quakes Top 20 past 24 hrs Quakes in El Salvador

Seismograms

Seismic station: Montecristo, El Salvador (SNET/SV network) | Distance from quake: 98 km / 61 mi | Show on map | Station Info

Seismic station Montecristo, El Salvador: 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: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismogram (vertical component) around time of quake. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Tegucigalpa, Honduras (TGUH/CU network) | Distance from quake: 217 km / 135 mi | Show on map | Station Info

User reports for this quake (4)

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

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San Miguel, El Salvador (99.8 km NE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 10-15 s (reported through our app)

190.7 km ENE of epicenter [Map] / Light shaking (MMI IV) / 5-10 s

Colonia Escalon / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s

San Salvador (95.9 km NNW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s

Earlier earthquakes in the same area

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