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EXPLAINER: What hazards are posed by Hawaii’s Mauna Loa?

The glow of the Mauna Loa eruption is seen from Kona Bay, Monday, Nov. 28, 2022, in Kona, Hawaii. Mauna Loa, the world's largest active volcano erupted Monday for the first time in 38 years. (AP Photo/Marco Garcia)

A river of lava flows down from Mauna Loa, Monday, Nov. 28, 2022, near Hilo, Hawaii. Mauna Loa, the world's largest active volcano erupted Monday for the first time in 38 years. (AP Photo/Marco Garcia)

A man photographs the glow from lava erupting from Hawaii's Mauna Loa volcano, Monday, Nov. 28, 2022, in Hilo, Hawaii. (AP Photo/Caleb Jones)

People watch the glow from lava erupting from Hawaii's Mauna Loa volcano, Monday, Nov. 28, 2022 in Hilo, Hawaii. (AP Photo/Caleb Jones)

A river of lava flows down from Mauna Loa, Monday, Nov. 28, 2022, near Hilo, Hawaii. Mauna Loa, the world's largest active volcano erupted Monday for the first time in 38 years. (AP Photo/Marco Garcia)

In this aerial photo released by the U.S. Geological Survey, the Mauna Loa volcano is seen erupting from vents on the Northeast Rift Zone on the Big Island of Hawaii, Monday, Nov. 28, 2022. Hawaii's Mauna Loa, the world's largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities. (U.S. Geological Survey via AP)

In this aerial photo released by the U.S. Geological Survey, the Mauna Loa volcano is seen erupting from vents on the Northeast Rift Zone on the Big Island of Hawaii, Monday, Nov. 28, 2022. Hawaii's Mauna Loa, the world's largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities. (U.S. Geological Survey via AP)

Lava pours out of the summit crater of Mauna Loa about 6:35 a.m. Monday, Nov. 28, 2022, as seen from Gilbert Kahele Recreation Area on Maunakea, Hawaii. Mauna Loa, the world’s largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities. (Chelsea Jensen/West Hawaii Today via AP)

Lava pours out of the summit crater of Mauna Loa about 6:35 a.m. Monday, Nov. 28, 2022, as seen from Gilbert Kahele Recreation Area on Maunakea, Hawaii. Mauna Loa, the world’s largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities. (Chelsea Jensen/West Hawaii Today via AP)

Lava pours out of the summit crater of Mauna Loa about 6:35 a.m. Monday, Nov. 28, 2022, as seen from Gilbert Kahele Recreation Area on Maunakea, Hawaii. Mauna Loa, the world’s largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities. (Chelsea Jensen/West Hawaii Today via AP)

This image provided by the USGS Hawaiian Volcano Observatory shows a view from a research camera on the north rim of the summit caldera of the Mauna Loa volcano, Monday, Nov. 28, 2022. The U.S. Geological Survey says the eruption began late Sunday night in the summit caldera of the volcano on the Big Island. Early Monday it said lava flows were contained within the summit area and weren’t threatening nearby communities. (USGS Hawaiian Volcano Observatory via AP)

EXPLAINER: What hazards are posed by Hawaii’s Mauna Loa?