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Light mag. 4.2 earthquake - North Pacific Ocean, 92 km southwest of Sonsonate, El Salvador, on Thursday, Mar 16, 2023 at 7:35 pm (GMT -6) -

Light magnitude 4.2 earthquake at 35 km depth

17 Mar 01:42 UTC: First to report: INETER after 7 minutes.
17 Mar 01:49: Magnitude recalculated from 4.4 to 4.2. Hypocenter depth recalculated from 10.0 to 26.0 km (from 6.2 to 16.2 mi). Epicenter location corrected by 6.2 km (3.8 mi) towards NE.
17 Mar 01:55: Now using data updates from USGS

Earthquake details

Date & time	Mar 17, 2023 01:35:13 UTC -
Local time at epicenter	Thursday, Mar 16, 2023 at 7:35 pm (GMT -6)
Status	Confirmed
Magnitude	4.2
Depth	35.0 km
Epicenter latitude / longitude	13.0328°N / 90.2058°W (North Pacific Ocean, El Salvador)
Antipode	13.033°S / 89.794°E
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Apaneca Range (106 km / 66 mi)
Nearby towns and cities	75 km (46 mi) SSW of Acajutla (pop: 22,800) \| Show on map \| Quakes nearby 92 km (57 mi) SW of Sonsonate (pop: 59,500) \| Show on map \| Quakes nearby 94 km (59 mi) SW of Sonzacate (pop: 15,400) \| Show on map \| Quakes nearby 98 km (61 mi) SW of Izalco (pop: 19,200) \| Show on map \| Quakes nearby 123 km (77 mi) SW of Santa Tecla (pop: 124,700) \| Show on map \| Quakes nearby 128 km (79 mi) SSW of Santa Ana (pop: 176,700) \| Show on map \| Quakes nearby 132 km (82 mi) SW of San Salvador (pop: 526,000) \| Show on map \| Quakes nearby 138 km (86 mi) SW of Soyapango (pop: 329,700) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 28°C (82 F), humidity: 72%, wind: 2 m/s (4 kts) from S
Estimated seismic energy released	1.3 x 10¹¹ joules (35 megawatt hours, equivalent to 30.1 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
4.2	35 km	98 Km Al Suroeste De Acajutla, El Salvador	USGS
4.2	26 km	74 Km SSW of Acajutla, El Salvador	INETER
4.2	35 km	El Salvador: Near Coast of Guatemala	RaspberryShake
4.2	10 km	El Salvador: Near Coast Of Guatemala	IRIS
4.2	35 km	OFFSHORE EL SALVADOR	EMSC

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

Seismograms

Seismic station: Montecristo, El Salvador (SNET/SV network) | Distance from quake: 128 km / 80 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: 337 km / 209 mi | Show on map | Station Info

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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