August 6, 1913 Earthquake: Caraveli, Chuquibamba, Ocona, Atico, Peru

August 6, 1913, at 17:13 [local time]. earthquake which destroyed the city of Caraveli (1779 m a.s.l.), built near the abutments of the Cordillera Occidental, in a gorge cut in Tertiary-Quaternary volcanic material. The movement, of a few seconds duration, knocked all the buildings out of line and caused slides on the sides of the valley, claiming several victims. All the villages of the Mejes Valley were affected, particularly Chuquimbamba (2921 m a.s.l.) where besides throwing down the Matriz church, it damaged houses. The vibrations caused cracking of the church of the village of Calloma (4354 m a.s.l.), in the peaks of the Cordillera Occidental. In the coastal zone the villages of Ocona and Atico suffered. In the city of Arequipa several buildings were slightly damaged. On the basis of the destructive effects of the shock, Umlauf (1913) estimated an epicentral area of 30,000 km2, bounded by the Intensity X MM isoseist, while he limited the intensity VII to an elliptical area of 58,000 km2. The movement was felt as far as Iquique (Chile) and La Paz (Bolivia). The observatories at Lima and La Paz, at average distances of 550 and 620 km, reported an approximate epicentral zone situated in the ocean, off the coast. Gutenberg and Richter (1954) gave the geographic location of 17 S and 74 W for this earthquake, with a magnitude of 7.75. (reference #1111)

August 6, 1913, 22:14:24 UTC, 17 S, 74 W, shallow depth, magnitude 7.9 MS. (reference #88)

August 6, 1913, 22:14:24 UTC, 15.78 S, 72.77 W, depth 80 km, magnitude 7.9 MS, intensity VIII, seiche, casualties. (reference #1221)

August 6, 1913, 22:14:24 UTC, 15.8 S, 73.5 W, magnitude 7.8 MS, intensity X, landslides, casualties. (reference #1208)