MAUNA LOA, Hawaii – The USGS Hawaiian Volcano Observatory is now issuing weekly updates on Mauna Loa following the elevation in the Volcano Alert Level to ADVISORY/YELLOW.
On Thursday, September 24th, scientists released this activity summary:
“Mauna Loa is not erupting. Earthquake rates during the past week continue to be elevated, though at a lower rate than the previous week. Earthquakes occurred beneath Mauna Loa’s upper Southwest Rift Zone and upper west flank at depths less than 13 km (8 miles). Deformation data indicate continued inflation of magma reservoirs beneath Mauna Loa’s summit and upper Southwest Rift Zone.”USGS Hawaiian Volcano Observatory on Sept. 24
USGS scientists say it is possible that, as in 2005, “the present heightened activity will continue for many months, or even years, without progressing to an eruption. It is also possible that the current unrest is a precursor to an eruption, as was the case prior to eruptions in 1975 and 1984. At this early stage of unrest, we cannot determine which of these possibilities is more likely.”