Mag. 4.5 earthquake - Tonga on Monday, 22 October 2001 at 22:10 (GMT)
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Light magnitude 4.5 earthquake at 33 km depth
Depth: 33.0 km
Epicenter latitude / longitude: 15.861°S / 173.964°W (Tonga)
Nearest volcano: Tafahi (26 km / 16 mi)
Nearby towns and cities:
21 km (13 mi) WNW of Hihifo (pop: 815) --> See nearby quakes!
297 km (185 mi) SSW of Asau (Samoa) (pop: 6,640) --> See nearby quakes!
310 km (193 mi) N of Neiafu (pop: 4,320) --> See nearby quakes!
327 km (203 mi) SW of Apia (Samoa) (pop: 40,400) --> See nearby quakes!
373 km (232 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
387 km (241 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
392 km (244 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
442 km (274 mi) N of Pangai (pop: 1,740) --> See nearby quakes!
557 km (346 mi) NW of Alofi (Niue) (pop: 624) --> See nearby quakes!
601 km (374 mi) NNE of Nuku'alofa (pop: 22,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) 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.
|M 4.5||33 km||Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.