The 5.7 Mw San Salvador earthquake shook San Salvador, El Salvador with a maximum Mercalli intensity of IX (Violent). Up to 1,500 people were killed.

The 1986 San Salvador earthquake occurred at 11:49:26 local time on October 10 with a moment magnitude of 5.7 and a maximum Mercalli intensity of IX (Violent). The shock caused considerable damage to El Salvador's capital city of San Salvador and surrounding areas, including neighboring Honduras and Guatemala.