Mauna Loa is not erupting. A small earthquake swarm occurred beneath Mauna Loa’s west flank from Saturday, May 28 through Tuesday, May 31. Most of the earthquakes occurred at depths between 5-8 km (3-5 mi) below the surface and the largest event was a magnitude 2.8. This activity is part of the expected range of behaviors for Mauna Loa and does not represent a significant change.
Seismicity rates have since decreased, though are nonetheless elevated above the long-term background. Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone, with inflation recently occurring mainly in the southwestern part of the magma storage complex.
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June 03 , 2016. Mauna Loa , Hawai :
19°28’30” N 155°36’29” W,
Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW
Source : HVO