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Weak mag. 3.6 earthquake - 67 km southwest of Vallenar, Huasco, Atacama, Chile, on Thursday, Jan 12, 2023 at 6:22 am (GMT -3) -

Weak magnitude 3.6 earthquake at 54 km depth

12 Jan 09:27 UTC: First to report: EMSC after 5 minutes.
12 Jan 09:37: Magnitude recalculated from 3.7 to 3.6. Hypocenter depth recalculated from 50.0 to 54.0 km (from 31 to 34 mi). Epicenter location corrected by 6.7 km (4.1 mi) towards S.

Earthquake details

Date & time	Jan 12, 2023 09:22:19 UTC -
Local time at epicenter	Thursday, Jan 12, 2023 at 6:22 am (GMT -3)
Status	Confirmed
Magnitude	3.6
Depth	54.0 km
Epicenter latitude / longitude	29°S / 71.25°W (Huasco, Atacama, Chile)
Antipode	29°N / 108.75°E
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	EMSC (European-Mediterranean Seismological Centre)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	67 km (42 mi) SW of Vallenar (pop: 44,900) \| Show on map \| Quakes nearby 101 km (63 mi) N of La Serena (Coquimbo) (pop: 154,500) \| Show on map \| Quakes nearby 106 km (66 mi) N of Coquimbo (pop: 161,300) \| Show on map \| Quakes nearby 126 km (79 mi) NNW of Vicuña (Coquimbo) (pop: 13,500) \| Show on map \| Quakes nearby 178 km (111 mi) N of Ovalle (Coquimbo) (pop: 77,100) \| Show on map \| Quakes nearby 203 km (126 mi) SSW of Copiapo (pop: 129,300) \| Show on map \| Quakes nearby 499 km (310 mi) N of Santiago de Chile (Metropolitana) (pop: 4,837,300) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 15°C (59 F), humidity: 89%, wind: 1 m/s (1 kts) from S
Estimated seismic energy released	1.6 x 10¹⁰ joules (4.4 megawatt hours, equivalent to 3.79 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
3.6	54 km	ATACAMA, CHILE	EMSC
3.6	54 km	Near Coast of Central Chile	RaspberryShake

Most recent quakes Top 20 past 24 hrs Quakes in Chile

Seismograms

Seismic station: Llanos de Challe (AC04/C1 network) | Distance from quake: 90 km / 56 mi | Show on map | Station Info

Seismic station Llanos de Challe: 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 Llanos de Challe: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Llanos de Challe: 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: Tololo Observatory, Vicuna, Chile (GO04/C network) | Distance from quake: 137 km / 85 mi | Show on map | Station Info

Seismic station Tololo Observatory, Vicuna, Chile: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Tololo Observatory, Vicuna, Chile: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Tololo Observatory, Vicuna, Chile: 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: Copiapo, Mina Casimiro Domeyko (AC06/C1 network) | Distance from quake: 203 km / 126 mi | Show on map | Station Info

Seismic station Copiapo, Mina Casimiro Domeyko: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Copiapo, Mina Casimiro Domeyko: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Copiapo, Mina Casimiro Domeyko: 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: Pan de Azucar (AC01/C1 network) | Distance from quake: 324 km / 201 mi | Show on map | Station Info

Seismic station Pan de Azucar: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Pan de Azucar: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Pan de Azucar: 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: La Punta (BO04/C1 network) | Distance from quake: 558 km / 347 mi | Show on map | Station Info

Seismic station La Punta: 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: 0.5-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station La Punta: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station La Punta: 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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