Location: 136 km WNW of Valparaíso, Chile Period: 9 Apr 2001 09:00:57 - 12 Apr 2001 21:19:04 (3 days 12 hours 18 minutes) Volcanoes in 100km radius: None Earthquakes: 53 2 swarms found nearby. 2008 PS20081219.1(98.9km) 18 Dec 1 day 14 hours 8 earthquakes 2015 PS20150917.2(84.1km) 17 Sep 21 hours 9 earthquakes