Past Month Monitoring Data for Kīlauea
Earthquake Hypocenters Map and Cross Section - Past Month
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
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.
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.
Electronic Tilt at Kīlauea Summit and East Rift Zone - Past Month
Above: The blue line shows the radial tilt at Summer Camp station (SMC), on the eastern 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.