Very strong mag. 6.6 earthquake - North Pacific Ocean, 59 km south of Manzanillo, Colima, Mexico, on Wednesday, December 13, 1933 at 21:23 (GMT)
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Very strong magnitude 6.6 earthquake at 20 km depth
Depth: 20.0 km
Epicenter latitude / longitude: 18.603°N / 104.474°W↗ (North Pacific Ocean, Mexico)
Antipode: 18.603°S / 75.526°E↗
Nearest volcano: Colima (135 km / 84 mi)
Nearby towns and cities:
54 km (33 mi) SSW of San Ignacio (pop: 42) --> See nearby quakes!
56 km (35 mi) SSW of El Colomo (pop: 10,300) --> See nearby quakes!
59 km (37 mi) SSW of Manzanillo (pop: 130,000) --> See nearby quakes!
65 km (41 mi) SW of Ciudad de Armeria (Ciudad de Armería) (pop: 15,900) --> See nearby quakes!
71 km (44 mi) S of Cihuatlan (Cihuatlán) (pop: 18,200) --> See nearby quakes!
72 km (45 mi) WSW of Tecoman (pop: 85,700) --> See nearby quakes!
73 km (46 mi) SSE of San Patricio (pop: 7,570) --> See nearby quakes!
107 km (66 mi) SW of Colima (pop: 137,400) --> See nearby quakes!
107 km (67 mi) SW of Ciudad de Villa de Alvarez (pop: 117,600) --> See nearby quakes!
570 km (354 mi) W of Mexico City (pop: 12,294,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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.
|6.6||20 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.
Recorded aftershocks, latest first (1 quake)
- 14 Dec 1933 07:16 UTC| M 6.3 |30 km (18.6 mi) depth|106 km (66 mi) distance| USGS | Very strong mag. 6.3 earthquake - Chinicuila, Michoacan, 53 km southeast of Tecoman, Colima, Mexico, on Thursday, December 14, 1933 at 07:16 (GMT)