Strong mag. 6.6 earthquake - Strait of Gibraltar (Portugal) on Sunday, 15 March 1964 at 22:30 (GMT)
Strong magnitude 6.6 earthquake at 25 km depth
Quake Data | User Reports | Aftershocks | Earlier quakes in same area | Quakes in Portugal, Azores & Madeira
Magnitude: 6.6
Depth: 25.0 km
Epicenter latitude / longitude: 36.221°N / 7.59°W
(Portugal)Nearby towns and cities:
93 km (58 mi) SSE of Olhão (Faro) (pop: 29,200)
101 km (63 mi) S of Tavira (Faro) (pop: 15,100)
105 km (65 mi) SSE of Quarteira (Faro) (pop: 18,800)
109 km (68 mi) SSE of Loulé (Faro) (pop: 23,100)
133 km (82 mi) SE of Portimão (Faro) (pop: 38,500)
255 km (158 mi) NNW of Rabat (Rabat-Salé-Kénitra, Morocco) (pop: 1,655,800)
293 km (182 mi) N of Casablanca (Casablanca-Settat, Morocco) (pop: 3,144,900)
309 km (192 mi) SSE of Lisbon (Lisboa) (pop: 517,800)
Primary data source: USGS
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) [learn more]
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.
| Magnitude | Depth | Location | Source |
| M 6.6 | 25 km | Strait of Gibraltar (Portugal) | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
So far, no aftershocks have been registered.
Aftershocks of the 6.6 quake Strait of Gibraltar (Portugal) 15 March 22:30 UTC
More info
Recorded aftershocks, latest first (0 quakes):So far, no aftershocks have been registered.
Earlier earthquakes in the same area
Strong mag. 6.6 earthquake - Strait of Gibraltar (Portugal) on Sunday, 15 March 1964 at 22:30 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!
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