M 4.9 Earthquake in Ecuador (Riobamba) — April 28, 1984

M 4.9 Earthquake in Ecuador (Riobamba) — April 28, 1984. Epicenter 46 km S of Riobamba, depth 33 km, 16:43 Local (1984-04-28 21:43 UTC). Shaking felt by ~4.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

46 km S of Riobamba (Ecuador) — -2.081, -78.692

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