M 5.3 - 5 km SSE of Chivay, Peru
- 1991-07-23 19:44:50 (UTC)
- 15.679°S 71.574°W
- 5.0 km depth
ShakeMap
At least 12 people killed, 30 injured and about 80 missing in the Maca-Chivay area. Felt (V) at Maca, Yanque, Ichupampa and Achoma. Felt (II) at Arequipa. Landslides occurred in the epicentral area. CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 15S, 26C Centroid Location: Origin Time 19:44:53.6 0.8 Lat 15.85S 0.08 Lon 70.88W 0.09 Dep 24.2 7.1 Half-duration 1.6 Moment Tensor; Scale 10**16 Nm Mrr=-1.42 0.55 Mtt=8.02 0.63 Mff=-6.60 1.04 Mrt=1.36 0.94 Mrf=1.60 0.90 Mtf=4.96 0.45 Principal Axes: (T) Val=9.82 Plg=9 Azm=342 (N) Val=-1.51 Plg=77 Azm=210 (P) Val=-8.31 Plg=10 Azm=74 Best Double Couple:Mo=9.1*10**16 NP1:Strike=118 Dip=77 Slip=0 NP2:Strike=208 Dip=90 Slip=-167