Maug

Mariana Islands

SUMMARY

Type: composite
Activity: dormant
Last Eruption: ~100,000 yrs BP
Rock Type: ?
Eruptive Volume: ?
Location Map from Xerox PARC
Latitude: 20.02 N
Longitude: 145.22 E

Geologic Background:

The Maug Islands consist of three remnants of a large stratovolcano enclosing a 2.5-km-wide caldera containing a submerged central cone that rises to within 20 m of the surface. Maug is mapped as Quaternary; widespread corals and reefs support longperiod of general quiescence but do not rule out recent mild volcanic activity.

Historic Activity:

  • Maug has not erupted during historic time.

Recent Activity:

  • No activity evident on May 13,1992.

Data Sources:

  • Global Volcanism Network (V. 17, No. 6)

ADDITIONAL INFORMATION

Last Update: 12/12/00