Hawaiian Volcano Observatory

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Earthquake Hypocenters Map - Past 5 Years Mauna Loa
December 31, 2019

Earthquake Hypocenters Map - Past 5 Years Mauna Loa

Earthquake Hypocenters Map - Past 5 Years Mauna Loa. Map showing locations of earthquakes during the past year.

Locations and depths of earthquakes during the past week
December 31, 2019

Earthquake Hypocenters Map and Cross Section - Past Week Kilauea

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 Depths - Past Year - Kīlauea
December 31, 2019

Earthquake Depths - Past Year - Kīlauea

Depth of earthquakes during the past year. Circle-size represents magnitude, and color indicates depth.

Electronic Tilt at Mauna Loa Summit - Past Month
December 31, 2019

Electronic Tilt at Mauna Loa Summit - Past Month

Electronic Tilt at Mauna Loa Summit - Past Month

Earthquake Hypocenters Cross Section - Past 5 Years Mauna Loa
December 31, 2019

Earthquake Hypocenters Cross Section - Past 5 Years Mauna Loa

Earthquake Hypocenters Cross Section - Past 5 Years Mauna Loa. Depth of earthquakes (circles) during the past five years. Circle-size represents magnitude, and color indicates depth. 

Earthquake Rates and Depths - Past Week Monitoring Data for Kīlauea
December 31, 2019

Earthquake Rates and Depths - Past Week Monitoring Data for Kīlauea

Number of earthquakes per day during the past week (blue bars). The red line is the cumulative moment (energy) release.

Global Positioning System - Past Year - Kīlauea
December 31, 2019

Global Positioning System - Past Year - Kīlauea

Change in distance between two Global Positioning System (GPS) stations located on opposite sides of Kīlauea's caldera. A rapid increase in distance can be interpreted as inflation of the summit magma reservoir or Pu‘u ‘Ō‘ō magma storage chamber.

Cross-caldera Distance Change - Past Year Mauna Loa
December 31, 2019

Cross-caldera Distance Change - Past Year

Cross-caldera Distance Change - Past Year

Earthquake Rates - Past 5 Years Mauna Loa
December 31, 2019

Earthquake Rates - Past 5 Years Mauna Loa

Earthquake Rates - Past 5 Years Mauna Loa. Number of earthquakes per month during the past five years (blue bars). The red line is the cumulative moment (energy) release.

Earthquake Depths - Past Week Kilauea
December 31, 2019

Earthquake Depths - Past Week Kilauea

Earthquake Depths - Past Week Kilauea. Circle-size represents magnitude, and color indicates depth. An interactive earthquake plot can be found on the HVO Earthquakes page.

Global Positioning System - Past Year - Kīlauea
December 31, 2019

Global Positioning System - Past Year - Kīlauea

Change in distance between two stations near Pu‘u ‘Ō‘ō. A rapid increase in distance can be interpreted as inflation of the summit magma reservoir or Pu‘u ‘Ō‘ō magma storage chamber.

Cross-caldera Distance Change - Past 5 Years Mauna Loa
December 31, 2019

Cross-caldera Distance Change - Past 5 Years

Cross-caldera Distance Change - Past 5 Years