HVO Mauna Loa YELLOW/ADVISORY - Mauna Loa is not erupting. Deformation and seismicity rates above long-term background.
Mar 8, 2018 18:45 - Activity Summary: Mauna Loa Volcano is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and persist above long-term background levels. Observations: During the past week, only a few small-magnitude earthquakes occurred beneath the volcano, primarily at depths shallower than 13 km (8 miles). Most notable were magnitude 3.1 and 3.0 earthquakes on Mauna Loa's upper southwest rift on March 3 and 4. Global Positioning System (GPS) and Interferometric Synthetic Aperture Radar (InSAR) measurements continue to show slow ...