Past Week Monitoring Data for Kīlauea
Seismic Data
Earthquake Hypocenters Map and Cross Section
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
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 Kīlauea Volcano, see the HVO Deformation page.
Real-time Global Positioning System at Kīlauea's summit, past week
South Caldera vertical component
Uwekahuna north component
These plots show the vertical deformation at GPS station CALS (on the north rim of Halemaumau crater) and north-south deformation at GPS station UWEV (on the northwest caldera rim near HVO). Positive changes indicate uplift (for CALS) or horizontal motion to the north (for UWEV), and negative changes indicate subsidence or horizontal motion to the south.
Electronic Tilt at Kīlauea Summit and East Rift Zone - Past Week
Above: The blue line shows the radial tilt at Uēkahuna (UWE), on the northwest rim of Kīlauea's caldera. The green line is radial tilt at Pu‘u ‘Ō‘ō (POC), on the north flank 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.