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January 7, 2020

Transitions: What's next for HVO and the volcanoes it monitors?

2018 and 2019 were years of profound change at Kīlauea Volcano and the USGS Hawaiian Volcano Observatory. Devastation caused by the largest lower East Rift Zone eruption and summit collapse in at least 200 years resulted in many transitions for island residents, including HVO. Tina Neal, Scientist-in-Charge of the Hawaiian Volcano Observatory, describes the current status

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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 Year Mauna Loa
December 31, 2019

Earthquake Rates - Past Year Mauna Loa

Earthquake Rates - Past Year Mauna Loa. Number of earthquakes per week during the past year (blue bars). The red line is the cumulative moment (energy) release. 

Attribution: Mauna Loa
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

Earthquake Depths - Past Year Mauna Loa
December 31, 2019

Earthquake Depths - Past Year Mauna Loa

Earthquake Depths - Past Year Mauna Loa. 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.

Attribution: Mauna Loa
Summit Vertical Motion - Past Year Mauna Loa
December 31, 2019

Summit Vertical Motion - Past Year

Summit Vertical Motion - Past Year

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

Cross-caldera Distance Change - Past Year Mauna Loa

Cross-caldera Distance Change - Past Year Mauna Loa. Changes in distance between two GPS stations on opposite sides of MOKUAWEOAWEO, Mauna Loa's summit caldera. Extension across the caldera is often an indication of inflation of the shallow summit magma reservoir.

Attribution: Mauna Loa
Summit Vertical Motion - Past 5 Years Mauna Loa
December 31, 2019

Summit Vertical Motion - Past 5 Years

Summit Vertical Motion - Past 5 Years

Summit Vertical Motion - Past Year Mauna Loa
December 31, 2019

Summit Vertical Motion - Past Year Mauna Loa

Summit Vertical Motion - Past Year Mauna Loa. Vertical motion of a GPS station on the southeast side of Mauna Loa's summit caldera. This station is in an area that has historically shown the largest amount of uplift with inflation.

Attribution: Mauna Loa
Earthquake Hypocenters Map - Past Week Mauna Loa
December 31, 2019

Earthquake Hypocenters Map - Past Week Mauna Loa

Earthquake Hypocenters Map and Cross Section - Past Week Mauna Loa. Map showing locations of earthquakes during the past week. 

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.

Earthquake Hypocenters Depth - Past Week Mauna Loa
December 31, 2019

Earthquake Hypocenters Depth - Past Week Mauna Loa

Earthquake Hypocenters Depth - Past Week Mauna Loa. Depth of earthquakes (circles) during the past week. Circle-size represents magnitude, and color indicates depth.