M 4.6 Earthquake in Argentina (La Rioja) — December 18, 1990

M 4.6 Earthquake in Argentina (La Rioja) — December 18, 1990. Epicenter 135 km W of La Rioja, depth 106 km, 19:38 Local (1990-12-18 21:38 UTC). Shaking felt by ~56K people. Readings from every reporting agency, affected towns, aftershock sequence.

135 km W of La Rioja (Argentina) — -29.434, -68.242

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