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Light mag. 4.8 earthquake - 39 km southeast of Bucaramanga, Santander, Colombia, on Thursday, Dec 9, 2021 at 6:14 pm (GMT -5) -

Light mag. 4.8 earthquake - 39 km southeast of Bucaramanga, Santander, Colombia, on Thursday, Dec 9, 2021 at 6:14 pm (GMT -5) Light mag. 4.8 earthquake - 39 km southeast of Bucaramanga, Santander, Colombia, on Thursday, Dec 9, 2021 at 6:14 pm (GMT -5)

Light magnitude 4.8 earthquake at 152 km depth

9 Dec 23:17 UTC: First to report: VolcanoDiscovery after 2 minutes.
9 Dec 23:25: Now using data updates from GFZ
9 Dec 23:42: Now using data updates from USGS
Update Thu, 9 Dec 2021, 23:30

Moderate magnitude 4.8 earthquake 12 km northeast of San Gil, Colombia

4.8 quake 9 Dec 6:14 pm (GMT -5)
4.8 quake 9 Dec 6:14 pm (GMT -5)
An earthquake of magnitude 4.8 occurred only 15 minutes ago 12 km northeast of San Gil, Colombia, the German Research Centre for Geosciences (GFZ) reported.
The quake hit at an intermediate to considerable depth of 173 km beneath the epicenter near San Gil, Santander, Colombia, early evening on Thursday, December 9th, 2021, at 6:14 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.8 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Curiti (pop. 3,400) located 7 km from the epicenter, San Gil (pop. 33,600) 12 km away, Socorro (pop. 17,800) 28 km away, Piedecuesta (pop. 86,400) 37 km away, Malaga (pop. 18,700) 41 km away, Floridablanca (pop. 252,300) 45 km away, Giron (pop. 108,500) 46 km away, Bucaramanga (pop. 571,800) 52 km away, and Barrancabermeja (pop. 191,400) 95 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeDec 9, 2021 23:14:40 UTC -
Local time at epicenterThursday, Dec 9, 2021 at 6:14 pm (GMT -5)
StatusConfirmed
Magnitude4.8
Depth151.7 km
Epicenter latitude / longitude6.8293°N / 72.9372°W (Piedecuesta, Santander, Colombia)
Antipode6.829°S / 107.063°E
Shaking intensityWeak shaking
Felt9 reports
Primary data sourceUSGS (United States Geological Survey)
Nearby towns and cities9 km (6 mi) NNE of Cepita (pop: 377) | Show on map | Quakes nearby
22 km (13 mi) SE of Piedecuesta (pop: 86,400) | Show on map | Quakes nearby
27 km (17 mi) WNW of Malaga (Málaga) (pop: 18,700) | Show on map | Quakes nearby
31 km (19 mi) SSE of Floridablanca (pop: 252,300) | Show on map | Quakes nearby
37 km (23 mi) SE of Giron (pop: 108,500) | Show on map | Quakes nearby
37 km (23 mi) NE of San Gil (pop: 33,600) | Show on map | Quakes nearby
39 km (24 mi) SSE of Bucaramanga (pop: 571,800) | Show on map | Quakes nearby
54 km (33 mi) NE of Socorro (pop: 17,800) | Show on map | Quakes nearby
69 km (43 mi) SSW of Pamplona (Norte de Santander) (pop: 53,600) | Show on map | Quakes nearby
277 km (172 mi) NNE of Bogota (Bogotá D.C.) (pop: 7,674,400) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 19.1°C (66 F), humidity: 94%, wind: 1 m/s (2 kts) from NNE
Estimated seismic energy released1 x 1012 joules (278 megawatt hours, equivalent to 239 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.DepthLocationSource
4.8152 kmNear Bucaramanga, Santander, ColombiaUSGS
4.8142 kmNORTHERN COLOMBIAEMSC
4.8152 kmNorthern ColombiaRaspberryShake
4.8173 km9 Km NNE of Cepitá, ColombiaGFZ

Seismograms

Seismic station: La Rusia, Boyaca, Colombia (RUS/CM network) | Distance from quake: 105 km / 65 mi | Show on map | Station Info
Seismic station La Rusia, Boyaca, 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: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Bucaramanga, Santander (37.9 km NNW of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s : Estaba acostado en la cama  
Paipa (118.8 km S of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Normal  
Piedecuesta (23.1 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / very short
Floridablanca Santander colombia (27.6 km NW of epicenter) [Map] / Very weak shaking (MMI II) : I was sitting in bed and was touching the ground. My fan was rattling and I felt the floor move.  
Lebrija, Santander (44.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short : Acostada  
Floridablanca, Santander (31.5 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : Sitting at class  
Floridablanca, Santander (33.4 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s
Bogotá / Very weak shaking (MMI II) / single lateral shake / 2-5 s
Bucaramanga / Weak shaking (MMI III) / rattling, vibrating / 10-15 s

Earlier earthquakes in the same area

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