what type of activity is indicating that mauna loa may be entering a new period of volcanic activity
Kīlauea A prominent structure on Kīlauea's southern flank is the Hilina fault system, a highly active fault moving vertically an average of 2 to 20 mm (0.1 to 0.8 in) per year along the system. Its physiographic province is 500 m (1,640 ft) deep, but it is unknown if it is a shallow listric fault or if it penetrates to the very base of the volcano.[3] A number of cinder cones, satellite shields, lava tubes, and other eruptive structures also dot the volcano, evidence of its recent activity.[20] Kīlauea has some interactions with Mauna Loa, its larger neighbor and only other recently active volcano on the island; interspersed lava flows and ash deposits belonging to its neighbor have been found on its flanks, and some of Mauna Loa's flows are, in turn, blanketed in Kīlauea tephra. In particular, the saddle between the two volcanoes is currently depressed, and is likely to fill over in the future.[17]
Kīlauea KÄ«lauea has been erupting nearly continuously since 1983 and has caused considerable property damage, including the destruction of the town of Kalapana in 1990. On May 3, 2018, several lava vents opened in the lower Puna area, downrift from the summit. The new volcanic episode was accompanied by a strong earthquake of Mw 6.9, and nearly 2,000 residents were evacuated from Leilani Estates and the adjacent Lanipuna Gardens development. By May 9, 2018, the eruption had destroyed 27 houses in the Leilani Estates subdivision. On May 17, 2018 at 4:17 AM, the volcano explosively erupted, throwing ash 30,000 feet into the air.[4]