It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
On 29 November 1987, because of a regional (summer) thaw and the instability of mountains affected by the 1985 earthquake, an avalanche was generated in a small valley (Quebrada de Parraguirre) in the volcanic area. The avalanche caused a mudflow that descended the Río Colorado, killing 41 persons, destroying roads, machinery, and the Los Maitenes hydroelectric plant along some 50 km until its confluence with the Río Maipó, which passes through the city of Santiago. Also affected were the city's drinking water installations, and some 500,000 persons were left without water for 48 hours."
An Ancient Volcano
Rising out of the chaparral-covered Gabilan Mountains, east of central California's Salinas Valley, are the spectacular remains of an ancient volcano. Massive monoliths, spires, sheer-walled canyons and talus passages define millions of years of erosion, faulting and tectonic plate movement.