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Cerro Prieto volcano

lava dome 223 m / 732 ft
Northwestern México, 32.42°N / -115.31°W
Current status: (probably) extinct (0 out of 5)
Cerro Prieto volcano books
Typical eruption style: effusive
Cerro Prieto volcano eruptions: unknown, possibly less than 10,000 years ago
TimeMag. / DepthDistanceLocation
Wed, 17 Jan
Wed, 17 Jan 22:16 UTCM 1.5 / 7.2 km50 km- 16km NW of Progreso, B.C., MX
Tue, 16 Jan
Tue, 16 Jan 13:18 UTCM 1.9 / 3.8 km6 km- 8km NW of Delta, B.C., MX
Fri, 12 Jan
Fri, 12 Jan 00:24 UTCM 2.0 / 16 km8 kmBAJA CALIFORNIA, MEXICO
Tue, 9 Jan
Tue, 9 Jan 08:32 UTCM 1.6 / 15.6 km14 km- 20km W of Delta, B.C., MX
Wed, 3 Jan
Wed, 3 Jan 14:30 UTCM 1.8 / 17 km14 km- 8km ESE of Puebla, B.C., MX
View all recent quakes
Cerro Prieto volcano is a small dacitic lava dome in the Cerro Prieto geothermal field at the northern end of the Gulf of California, 33 km south of Mexicali at the Mexican border or 175 km SE of San Diego.

Background:

Cerro Prieto lies in an active continental rift that is transitional between the transform San Andreas fault system to the north and a spreading ridge of the East Pacific Rise in the Gulf of California to the south. The only surficial volcanic feature at Cerro Prieto, which is located near sea level on the Colorado River delta, is a small, 223-m-high compound dacitic lava dome. A 200-m-wide crater is located at the summit of the NE-most dome. The Cerro Prieto dome was roughly estimated from paleomagnetic evidence to have formed during a series of events between 100,000 and 10,000 years ago. Cucupas Indian legends described a monster that covered the land with hot rocks, which grew through the soil and emitted fire tongues, a possible reference to the growth of the volcano.
(Smithsonian / GVP volcano information)


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