Guayaques

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Guayaques volcano

lava domes 5598 m / 18,366 ft
Northern Chile, Bolivia and Argentina, South America, -22.9°S / -67.57°W
Current status: dormant (1 out of 5)

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Typical eruption style: effusive
Guayaques volcano eruptions: none in recent times

ASTER satellite image of Guayaques and neighboring volcanoes, taken in 2003 (retrieved from: http://ava.jpl.nasa.gov/volcano.asp?vnum=1505-093)

Last earthquakes nearby:

Time	Mag. / Depth	Distance	Location
Mon, 10 Jun
Mon, 10 Jun 17:09 UTC	M 4.4 / 242 km	39 km	ANTOFAGASTA, CHILE
Fri, 31 May
Fri, 31 May 01:26 UTC	M 3.9 / 257 km	12 km	ANTOFAGASTA, CHILE
Fri, 10 May
Fri, 10 May 22:03 UTC	M 3.2 / 243 km	31 km	ANTOFAGASTA, CHILE

Guayaques volcano is a group of lava domes in northern Chile on the border with Bolivia. The group of domes forms a 10 km long N-S trending chain and has fed thick, viscous lava flows extending up to about 3 km from the vents.
The youngest domes appear to be north of the summit crater of the dome complex and are less than 10,000 years old.

Background:

Cerros de Guayaques group of N-S-trending rhyodacitic lava domes straddles the Chile-Bolivia border. The 10-km-long chain is located immediately east of the Purico pyroclastic shield. There is some evidence for Holocene activity, and the youngest domes appear to be north of the summit crater of the dome complex (de Silva and Francis, 1991). A well-defined summit crater was the source of the largest lava flows, which traveled 3 km to the SW. There are no records of historical activity from Guayaques volcano.

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