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Past Week Monitoring Data for Mauna Loa

Seismic Data

Earthquake Hypocenters Map and Cross Section - Past Week
Mauna Loa Earthquakes past week
Mauna Loa Earthquakes Cross Section past week
Above Top: Map showing locations of earthquakes during the past week. Bottom: Depth of earthquakes (circles) during the past week. Circle-size represents magnitude, and color indicates depth. An interactive earthquake plot can be found on the HVO Earthquakes page.

Earthquake Rates and Depths - Past Week
Mauna Loa earthquake counts for the past week
Mauna Loa earthquake depths for the past week
Above Top: Number of earthquakes per day during the past week (blue bars). The red line is the cumulative moment (energy) release. Bottom: Depth of earthquakes during the past week in the area shown on the map above. On both figures, circle-size represents magnitude, and color indicates depth. An interactive earthquake plot can be found on the HVO Earthquakes page.

Deformation Data

Map of Selected Deformation Stations


For more information on how electronic tiltmeters and GPS receivers help monitor the deformation of Mauna Loa Volcano, see the HVO Deformation page.
Electronic Tilt at Mauna Loa Summit - Past Week
Mauna Loa Summit tilt for the past week
Above: Tilt data from a site near the northwest rim of Mauna Loa's summit caldera. The tiltmeter responds to daily and seasonal temperature fluctuations as well as possible changes in Mauna Loa's magma storage system.