Kīlauea

Past Month Monitoring Data for Kīlauea

Seismic Data

Earthquake Hypocenters Map and Cross Section - Past Month

Earthquake Hypocenters Map - Past Month - Kilauea

Depth of Earthquakes - Past Month - Kīlauea

Above Top: Map showing locations of earthquakes during the past month. Bottom: Depth of earthquakes (circles) during the past month. 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 Month

Earthquake Rates and Depths - Past Month - Kīlauea

Earthquake Depths - Past Month - Kīlauea

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

Select deformation instuments located on Kīlauea Volcano

Select deformation instuments located on Kīlauea Volcano. (Public domain.)

Deformation Data

Map of Selected Deformation Stations

For more information on how electronic tiltmeters and GPS receivers help monitor the deformation of Kīlauea Volcano, see the HVO Deformation page. Data plots from additional stations are available from our interactive map. Use the right-side menu to view different types of data.

 

 

 

 

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

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 heavy rainfall or, occasionally, instrumental malfunctions.

Gas Data

Sulfur dioxide concentration in ambient air - Kīlauea Summit - Past Month

Sulfur dioxide concentration in ambient air - Kīlauea Summit - Past Month

Sulfur dioxide concentration - Kīlauea Summit - Past Month

Sulfur dioxide concentration - Kīlauea Summit - Past Month

Above: Sulfur dioxide (SO2) concentrations measured at ~1.5 m (~5 ft) above ground level in ambient air in parts per million (ppm) by volume. These data are collected using equipment designed for monitoring volcanic unrest and may not be as accurate or precise as instruments used for for air quality measurements. Therefore, the unprocessed data stream may show drift in the background value or offset from a zero baseline. Values represent one-minute averages collected every 10-minutes. Spurious peaks may reflect instrument maintenance or malfunction.