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Information message about a strong earthquake in Colombia on August 10, 2026

A strong earthquake (significant at the epicenter on the SIS-17 scale) with M=6.9 occurred on August 10, 2026 at 12:34 GMT (15:34 Moscow time) in Colombia.<br /> SIS-17 - Earthquakes. Seismic intensity scale. State Standard 57546–2017.

Parameters of the earthquake have been determined in the Alert Service (AS) of Information Processing Center (IPC) of Geophysical Survey of RAS in Obninsk with station data obtained from digital and analog seismic stations of Russia, countries of CIS and from abroad. Alert message on this earthquake has been delivered in 16 min after registration to the Ministry of Emergency of the Russian Federation (EMERCOM).

Preliminary processing has been done with data from 12 stations, accurate processing - with data from 38.

The red marker on the map is the epicenter of the earthquake, its origin was located in central Colombia in the Chocó department, at a depth of 110 km, 63 km W-NW of Pereira, 79 km W-SW of Manizales and 240 km W-NW of Bogotá, the capital of Colombia.

	Time in origin (GMT)	Latitude, degree	Longitude, degree	Depth, km	Stations number	Ms/N	mb/N	I0 (calculated)	GAP	Center
1	12:34:29.0	4.91	-76.22	110.0	38	6.9/17	7.0/24	6-6.5	67	GS RAS(Verified) Federal research center, Geophysical survey of Russian Academy of Sciences
2	12:34:54.9	6.71	-74.57	220.0	12		6.5/8			GS RAS(Preliminary) Federal research center, Geophysical survey of Russian Academy of Sciences
3	12:34:28.8	4.88	-76.21	110.0	484	Mw 7.4	6.4/163		52	CSEM European - Mediterranean seismological center
4	12:34:28.1	4.84	-76.24	110.0	151	Mw 7.4	6.9/967		19	NEIC National Earthquakes Information Center of US Geological Service

Fig. 1 presents fragments of records obtained from digital stations Juntas de Abangares (∆ 10.2º), Nana (∆ 16.8º), Hockley (∆ 31.1º), Las Campanas Astronomical Observatory (∆ 34.1º), Albuquerque (∆ 40.9º). Fig. 2 presents fragments of records obtained from digital stations Kingsbay (∆ 84.9º), Provideniya (∆ 88.6º), Kaliningrad (∆ 89.7º), Vasula (∆ 92.6º), Lovozero (∆ 93.2º).

Image 1

Image 2

GS RAS registered one aftershock with М=5.0 in 44 minutes after the main shock.

N	Time in origin (GMT)	Latitude, degree	Longitude, degree	Depth, km	Stations number	Ms/N	mb/N	I0 (calculated)	Region
20263450	10/08/2026 13:18:11.0.0	4.97	-76.45	100.0	13		5.0/5		Colombia

According to TASS it was killed 319 people and 4 469 injured. At least three buildings were destroyed in Quibdó. Severe damage was also reported in the cities of Pereira and Manizales. The earthquake was felt across nine departments and all 32 capitals of Colombia, as well as in neighboring countries, including Panama, Venezuela, and Ecuador (Fig. 1).
Figure 2 was obtained from USGS NEIC, it presents USGS Community Internet Intensity Map made by 1036 responses.

Image 1

Image 2

Click here to view detailed macroseismic data (DyfitWeb service)

Focal mechanism solution of the origin was calculated by GS RAS with signs of initial arrivals of P waves at 42 stations, including 19 stations which registered compression waves (plus signs), and 23 stations which registered tensile waves (minus signs). The stations are located in the interval of epicentral distances 1.9-101º and in azimuth sector Az=2-343º. Focal mechanism solution in stereographic projection on the lower hemisphere and elements of the mechanism are presented in the table. The table also contains focal mechanism solutions obtained at the USGS NEIC with WW-phase Moment Tensor (Mww) technique and in Lamont-Dohert Earth Observatory of Columbia University, USA (LDEO GCMT) with СМТ (Centroid moment tensor) technique. Solutions from different centers are close.. The earthquake was caused by a slight predominance of north-oriented compression stresses (AZ=350-352º). One nodal plane NP1 strikes SW (STK=225-228º), another plane NP2 strikes E-SE (STK=123-125º). NP2 plane is dipping more horizontally (DP=46-59º) if compared with NP1 (DP=71-77º). The type of motion along NP1 – left lateral slip with reverse fault component, along NP2 – right lateral slip. The seismic moment according to USGS NEIC makes Mo= 1.663•10*20 N•m, Mww=7.41. According to LDEO GCMT it makes Mo=2.27*10**20 N*m, Mw=7.5.

Axes of main strengths			Nodal planes		Center
T	P	N	NP1	NP2	Center
PI: 36 Azm: 88	PI: 8 Azm: 352	PI: 53 Azm: 252	Stk: 225 Dp: 71 Slip: 33	Stk: 123 Dp: 59 Slip: 158	GS RAS Federal research center, Geophysical survey of Russian Academy of Sciences
PI: 36 Azm: 89	PI: 8 Azm: 352	PI: 53 Azm: 251	Stk: 226 Dp: 72 Slip: 33	Stk: 124 Dp: 59 Slip: 159	NEIC National Earthquakes Information Center of US Geological Service
PI: 40 Azm: 97	PI: 19 Azm: 350	PI: 43 Azm: 240	Stk: 228 Dp: 77 Slip: 45	Stk: 125 Dp: 46 Slip: 162	GCMT Lamont-Doherty Earth Observatory Global CMT Columbia University, USA