Hawaiian Volcano Observatory

Multimedia

Filter Total Items: 1,518
Earthquake Rates - Past 5 Years - Kīlauea
December 31, 2019

Earthquake Rates - Past 5 Years - Kīlauea

Number of earthquakes per month during the past 5 years (blue bars). The red line is the cumulative moment (energy) release. 

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 Rates and Depths - Past Month - Kīlauea
December 31, 2019

Earthquake Rates and Depths - Past Month - Kīlauea

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

Global Positioning System - Past 5 Years - Kīlauea Summit
December 31, 2019

Global Positioning System - Past 5 Years - Kīlauea Summit

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. 

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.

Earthquake Depths - Past Month - Kīlauea
December 31, 2019

Earthquake Depths - Past Month - Kīlauea

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

Global Positioning System - Past 5 Years - Pu‘u ‘Ō‘ō Cone
December 31, 2019

Global Positioning System - Past 5 Years - Pu‘u ‘Ō‘ō Cone

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.

Earthquake Rates - Past Week - Mauna Loa
December 31, 2019

Earthquake Rates - Past Week - Mauna Loa

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

Electronic Tilt at Kīlauea Summit and East Rift Zone - Past Month
December 31, 2019

Electronic Tilt at Kīlauea Summit and East Rift Zone - Past Month

The blue line shows the radial tilt at Uwekahuna station (UWE), on the western rim of Kīlauea's caldera. The green line is radial tilt at Pu‘u ‘Ō‘ō (POO), north of Pu‘u ‘Ō‘ō cone. These are recorded by continuously operating electronic tiltmeters. Positive changes often indicate inflation of the magma storage areas beneath the caldera or Pu‘u ‘Ō‘ō, but may also result from

...
Earthquake Depths - Past 5 Years - Kīlauea
December 31, 2019

Earthquake Depths - Past 5 Years - Kīlauea

Depth of earthquakes during the past 5 years in the area shown on the map above. Circle-size represents magnitude, and color indicates depth.

Earthquake Depths - Past Week Mauna Loa
December 31, 2019

Earthquake Depths - Past Week Mauna Loa

Earthquake Depths - Past Week 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. An interactive earthquake plot can be found on the HVO Earthquakes page.

Sulfur dioxide concentration in ambient air - Kīlauea Summit - Past Month
December 31, 2019

Sulfur dioxide concentration - Kīlauea Summit - Past Month

Sulfur dioxide concentration in ambient air - Kīlauea Summit - Past Month. HRCPK raw data SO2.