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Moderate mag. 4.1 earthquake - Provincia de Los Santos, Panama, on Tuesday, Oct 12, 2021 at 10:46 am (GMT -5) -

Moderate magnitude 4.1 earthquake at 1 km depth

12 Oct 15:52 UTC: First to report: EMSC after 5 minutes.
12 Oct 16:27: Magnitude recalculated from 4.4 to 4.1. Hypocenter depth recalculated from 10.0 to 1.0 km (from 6.2 to 0.6 mi). Epicenter location corrected by 121 km (75 mi) towards S.

Earthquake details

Date & time	Oct 12, 2021 15:46:58 UTC -
Local time at epicenter	Tuesday, Oct 12, 2021 at 10:46 am (GMT -5)
Status	Confirmed
Magnitude	4.1
Depth	1.0 km
Epicenter latitude / longitude	7.44°N / 80.56°W (Tonosi District, Provincia de Los Santos, Panama)
Antipode	7.44°S / 99.44°E
Shaking intensity	Light shaking
Felt	2 reports
Primary data source	EMSC (European-Mediterranean Seismological Centre)
Nearest volcano	Baru (231 km / 144 mi)
Nearby towns and cities	1 km (1 mi) WSW of El Guayabo (Los Santos) (pop: 31) \| Show on map \| Quakes nearby 14 km (9 mi) WNW of Tonosi (Los Santos) (pop: 1,480) \| Show on map \| Quakes nearby 32 km (20 mi) S of Macaracas (Los Santos) (pop: 2,220) \| Show on map \| Quakes nearby 38 km (23 mi) SSW of La Palma (Los Santos) (pop: 1,280) \| Show on map \| Quakes nearby 48 km (30 mi) SSW of Agua Buena (Los Santos) (pop: 1,010) \| Show on map \| Quakes nearby 48 km (30 mi) SW of Las Tablas (Los Santos) (pop: 8,940) \| Show on map \| Quakes nearby 49 km (31 mi) SW of La Palma (Los Santos) (pop: 1,140) \| Show on map \| Quakes nearby 60 km (38 mi) SSW of San Juan Bautista (Chitré, Herrera) (pop: 11,800) \| Show on map \| Quakes nearby 62 km (38 mi) SSW of Monagrillo (Chitré, Herrera) (pop: 10,800) \| Show on map \| Quakes nearby 207 km (129 mi) SSW of Panama (Panamá) (pop: 408,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 28.8°C (84 F), humidity: 70%, wind: 1 m/s (1 kts) from SSE
Estimated seismic energy released	8.9 x 10¹⁰ joules (24.8 megawatt hours, equivalent to 21.3 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
4.1	1 km	PANAMA	EMSC
4.3	9 km	Panama: 49 Km Al Sur De Las Tablas, Panamá	INETER

Most recent quakes Top 20 past 24 hrs Quakes in Panama

Seismograms

Seismic station: Isla Barro Colorado, Panama (BCIP/CU network) | Distance from quake: 208 km / 129 mi | Show on map | Station Info

Seismic station Isla Barro Colorado, Panama: 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

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Seismic station Isla Barro Colorado, Panama: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Isla Barro Colorado, Panama: 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: Heredia, Costa Rica (HDC/G network) | Distance from quake: 483 km / 300 mi | Show on map | Station Info

Seismic station Heredia, Costa Rica: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Heredia, Costa Rica: 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: Santa Helena, Medellin, Colombia (HEL/CM network) | Distance from quake: 573 km / 356 mi | Show on map | Station Info

Seismic station Santa Helena, Medellin, Colombia: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Santa Helena, Medellin, Colombia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Santa Helena, Medellin, Colombia: 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: INETER/GEOFON Station INETER, GEOFON Station Boaco/Nicaragua (BOAB/GE network) | Distance from quake: 789 km / 490 mi | Show on map | Station Info

Seismic station INETER/GEOFON Station INETER, GEOFON Station Boaco/Nicaragua: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station INETER/GEOFON Station INETER, GEOFON Station Boaco/Nicaragua: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station INETER/GEOFON Station INETER, GEOFON Station Boaco/Nicaragua: 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: Montecristo, El Salvador (SNET/SV network) | Distance from quake: 1175 km / 730 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

User reports for this quake (2)

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

Translate

Torio (44.3 km WNW of epicenter) [Map] / Weak shaking (MMI III)

tonosi / Moderate shaking (MMI V)

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