Strong mag. 6.1 earthquake - 8.4 km west of San Antonio, Province of Zambales, Central Luzon, Philippines, on Thursday, July 19, 1956 at 20:41 GMT
Quake Data | Interactive map | User Reports | Aftershocks | Earlier quakes here | Quakes in the Philippines | Central Luzon | National Capital Region

Strong magnitude 6.1 earthquake at 35 km depth
Magnitude: 6.1
Depth: 35.0 km
Epicenter latitude / longitude: 14.94°N / 120.009°E

Antipode: 14.94°S / 59.991°W
Nearest volcano: Pinatubo (42 km / 26 mi)
Nearby towns and cities:
8 km (5 mi) W of San Antonio (Zambales) (pop: 34,200) --> See nearby quakes!
11 km (7 mi) SW of San Narciso (Zambales) (pop: 15,600) --> See nearby quakes!
11 km (7 mi) SW of San Narciso (pop: 15,600) --> See nearby quakes!
16 km (10 mi) WSW of San Marcelino (Zambales) (pop: 18,700) --> See nearby quakes!
20 km (13 mi) W of Castillejos (Zambales) (pop: 27,300) --> See nearby quakes!
25 km (15 mi) WNW of Subic (pop: 67,700) --> See nearby quakes!
32 km (20 mi) WNW of ollong-gapo (pop: 221,200) --> See nearby quakes!
48 km (30 mi) W of Dinalupihan (pop: 66,700) --> See nearby quakes!
111 km (69 mi) WNW of Manila (pop: 1,600,000) --> See nearby quakes!
117 km (72 mi) WNW of Quezon City (pop: 2,761,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) | about seismic energy
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.
Mag. | Depth | Location | Source |
6.1 | 35 km | Luzon, Philippines | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
[More info]
Recorded aftershocks, latest first (0 quake)
So far, no aftershocks have been registered.
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!