On Thursday, September 17, the Volcano Alert Level and Aviation Color Code for Mauna Loa was elevated to Advisory/Yellow based on long-term trends in both earthquake and deformation monitoring data.
Mauna Loa is not erupting. Elevated seismicity is noted, though at a lower weekly rate than those reported mid- to late-summer. Earthquakes occurred beneath Mauna Loa’s upper Southwest Rift Zone and upper west flank at depths less than 13 km (8 miles). Deformation data continue to reflect inflation of magma reservoirs beneath Mauna Loa’s summit and upper Southwest Rift Zone.
October 07, 2015. 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