Very strong mag. 6.4 earthquake - North Pacific Ocean, 55 km southwest of Tecoman, Colima, Mexico, on Sunday, May 1, 1921 at 05:39 (GMT)
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Very strong magnitude 6.4 earthquake at 15 km depth
Depth: 15.0 km
Epicenter latitude / longitude: 18.594°N / 104.277°W↗ (North Pacific Ocean, Mexico)
Antipode: 18.594°S / 75.723°E↗
Nearest volcano: Colima (123 km / 76 mi)
Nearby towns and cities:
48 km (30 mi) SSW of San Buenaventura (pop: 634) --> See nearby quakes!
50 km (31 mi) SW of Ciudad de Armeria (Ciudad de Armería) (pop: 15,900) --> See nearby quakes!
52 km (32 mi) S of El Colomo (pop: 10,300) --> See nearby quakes!
55 km (34 mi) SW of Tecoman (pop: 85,700) --> See nearby quakes!
59 km (36 mi) S of Manzanillo (pop: 130,000) --> See nearby quakes!
61 km (38 mi) WSW of Cerro de Ortega (pop: 7,600) --> See nearby quakes!
78 km (48 mi) SSE of Cihuatlan (Cihuatlán) (pop: 18,200) --> See nearby quakes!
93 km (58 mi) SW of Colima (pop: 137,400) --> See nearby quakes!
94 km (58 mi) SW of Ciudad de Villa de Alvarez (pop: 117,600) --> See nearby quakes!
549 km (341 mi) W of Mexico City (pop: 12,294,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) More info
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.
|6.4||15 km||offshore Colima, Mexico||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.