A 6.9 magnitude earthquake occurred in the Gulf of California, between the Mexican states of Sonora and Baja California, on August 3, 2009, at 10:59:56 a.m. PDT (17:59:56 UTC). The quake's epicenter was located offshore, in the Gulf of California, between two islands, only 22 km (14 mi) from Isla Ángel de la Guarda and 36 km (22 mi) from Tiburón Island. It was 89 km (55 mi) north-northeast of Santa Isabel, Baja California, 185 km (115 mi) west of Hermosillo, Sonora.