Major magnitude 7.1 earthquake - North Atlantic Ocean, 42 km north of Aguadilla, Puerto Rico, on Friday, October 11, 1918 at 14:14 (GMT)
Quake Data | Interactive map | User Reports | Aftershocks | Earlier quakes here | Aguadilla | Mayaguez | Barceloneta | Vega Baja | Bayamon | San Juan
Major magnitude 7.1 earthquake at 15 km depth
Depth: 15.0 km
Epicenter latitude / longitude: 18.802°N / 67.219°W↗ (North Atlantic Ocean, Puerto Rico)
Antipode: 18.802°S / 112.781°E↗
Nearby towns and cities:
37 km (23 mi) NNW of San Antonio (pop: 2,300) --> See nearby quakes!
67 km (42 mi) N of Mayaguez (pop: 78,600) --> See nearby quakes!
82 km (51 mi) WNW of Barceloneta (Florida Afuera) (pop: 22,300) --> See nearby quakes!
96 km (60 mi) WNW of Vega Baja (pop: 29,300) --> See nearby quakes!
121 km (75 mi) WNW of Bayamon (pop: 203,500) --> See nearby quakes!
123 km (76 mi) WNW of Cataño (Catano) (pop: 28,100) --> See nearby quakes!
123 km (77 mi) WNW of San Juan (pop: 418,100) --> See nearby quakes!
125 km (77 mi) NW of Aibonito (pop: 8,950) --> See nearby quakes!
147 km (91 mi) WNW of Loiza (pop: 4,310) --> See nearby quakes!
158 km (98 mi) WNW of Las Piedras (pop: 6,660) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1015 joules (783 gigawatt hours, equivalent to 6.7 x 105 tons of TNT or 42.1 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.
|7.1||15 km||Puerto Rico region||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)
- 10 Feb 1920 22:07 UTC| M 6.4 |15 km (9.3 mi) depth|24 km (15 mi) distance| USGS | Very strong mag. 6.4 earthquake - North Atlantic Ocean, 29 km northwest of Aguadilla, Puerto Rico, on Tuesday, February 10, 1920 at 22:07 (GMT)