- Current Update, last updated Feb 11, 2015 10:41 :
No unusual deformation or seismicity was detected during the month of January 2015.
Ten deep (> 13 km) and 7 shallower earthquakes were detected beneath the volcano. Earthquakes to the north of the summit of Mauna Kea near Honoka`a are more likely associated with the load of the Island of Hawaii on the underlying crust and mantle, then to volcanic processes at Mauna Kea.
The GPS station on Mauna Kea, which is operated by the Jet Propulsion Lab (JPL), has not been operational since mid-October 2014.
- Volcanic History Overview: Mauna Kea, Hawaii's highest volcano, reaches 4205 m, only 35 m above its neighbor, Mauna Loa. In contrast to Mauna Loa, Mauna Kea lacks a summit caldera and is capped by a profusion of cinder cones and pyroclastic deposits. Mauna Kea's rift zones are less pronounced than on neighboring volcanoes, and the eruption of voluminous, late-stage pyroclastic material has buried much of the early basaltic shield volcano, giving the volcano a steeper and more irregular profile. This transition took place about 250,000 to 200,000 years ago, and much of Mauna Kea, whose Hawaiian name means "White Mountain," was constructed during the Pleistocene. Its age and high altitude make it the only Hawaiian volcano with glacial moraines. A road that reaches a cluster of astronomical observatories on the summit also provides access to seasonal tropical skiing. The latest eruptions at Mauna Kea produced a series of cinder cones and lava flows from vents on the northern and southern flanks during the early to mid Holocene.
- Location: Hawaii and Pacific Ocean, HI
Elevation: 4205 m
Recent Eruption: 4,500 years ago
- Hazard Assessments: Mullineaux, Donal Ray; Peterson, Donald W., 1974, Volcanic hazards on the Island of Hawaii, Open-File Report 74-239.
- Link to monitoring data: Recent Earthquakes in Hawaii Page
Volcanic Alert Level: NORMAL Aviation Color Code: GREEN