Mascota Volcanic Field
About Mascota Volcanic Field
A group of calc-alkaline andesitic and lamprophyre cinder cones and lava domes, along with associated lava flows, is located near the town of Mascota about 50 km E of Puerto Vallarta. Mascota is the youngest of a group of potassic volcanic fields in extensional grabens of the Jalisco block south of the Río Ameca. Most volcanism here is confined to two NNW-SSE-trending grabens cutting Cretaceous ash-flow tuffs. The youngest eruption was a basaltic andesite lava flow at Volcán Malpaís, north of Mascota; the lack of soil development and sparse vegetation suggest that it may be only a few thousand years old (Carmichael et al., 1996). The field is noted for its unusual diversity of volcanic rocks, and contains Earth's youngest known minettes (lamprophyres).
Eruption reports
Reports from GDACS and NASA EONET linked to this volcano.
No eruption reports in our records yet. New reports appear here automatically.
Earthquakes nearby, 30 days
Within about 50 km. Swarms of small quakes can sometimes accompany volcanic unrest.
No earthquakes recorded nearby in the last 30 days.