Hawaii Volcano Explainer FILE - Volcanic ash and steam rises from Mount St. Helens, Wash., as it erupted, May 18, 1980. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Hawaii volcanoes like Mauna Loa tend not to have explosive eruptions like Mount St. Helens in Washington state. That's because Hawaii's volcanoes have magma that's hotter, drier and more fluid, and doesn't trap as much gas, according to Hannah Dietterich, a research geophysicist at the U.S. Geological Survey's Alaska Volcano Observatory. (AP Photo/File) (Uncredited)
Hawaii Volcano Explainer Mauna Loa is seen from the Gilbert Kahele Recreation Area off Saddle Road on the Big Island of Hawaii on Oct. 27, 2022. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Scientists say they don't expect that to happen right away but officials on the Big Island are telling residents to be prepared in case it does erupt soon. (AP Photo/Megan Moseley) (Megan Moseley)
Hawaii Volcano Explainer FILE - A gaseous cloud rises from the crater of Mauna Loa, center, on the big island of Hawaii, April 4, 1984. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Scientists say they don't expect that to happen right away but officials on the Big Island of Hawaii are telling residents to be prepared in case it does erupt soon. (AP Photo/John Swart, File) (John Swart)
Hawaii Volcano Explainer FILE - Molten rock flows from Mauna Loa, located on the south-central part of the island of Hawaii, on March 26, 1984. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Scientists say they don't expect that to happen right away but officials on the Big Island of Hawaii are telling residents to be prepared in case it does erupt soon. (AP Photo/File) (Uncredited)
Hawaii Volcano Explainer FILE - Lava flows downhill from the crater of Mauna Loa, April 5, 1984, on the island of Hawaii. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Scientists say they don't expect that to happen right away but officials on the Big Island of Hawaii are telling residents to be prepared in case it does erupt soon. (AP Photo/John Swart, File) (John Swart)
Hawaii Volcano Explainer FILE - Lava from an open fissure on Kilauea volcano shoots high above a tree on May 20, 2018 near Pahoa, Hawaii. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Kilauea is well-known for a 2018 eruption that destroyed 700 homes and sent rivers of lava spreading across farms and into the ocean. (AP Photo/Caleb Jones, File) (Caleb Jones)
Hawaii Volcano FILE - Lava flows downhill from the crater of Mauna Loa, April 5, 1984, on the island of Hawaii. Hawaii officials are warning residents of the Big Island to prepare for the possibility that the world's largest active volcano may erupt given a recent spike in earthquakes at the summit of Mauna Loa. Scientists don't expect the volcano to erupt imminently, but officials are reminding people lava could reach some homes in just a few hours when it does. (AP Photo/John Swart, File) (John Swart)
Hawaii Volcano FILE - Molten rock flows from Mauna Loa, located on the south-central part of the island of Hawaii, on April 4, 1984. Hawaii officials are warning residents of the Big Island to prepare for the possibility that the world's largest active volcano may erupt given a recent spike in earthquakes at the summit of Mauna Loa. Scientists don't expect the volcano to erupt imminently, but officials are reminding people lava could reach some homes in just a few hours when it does. (AP Photo/File) (Uncredited)
Hawaii Volcano FILE - Molten rock flows from Mauna Loa, located on the south-central part of the island of Hawaii, on April 4, 1984. Hawaii officials are warning residents of the Big Island to prepare for the possibility that the world's largest active volcano may erupt given a recent spike in earthquakes at the summit of Mauna Loa. Scientists don't expect the volcano to erupt imminently, but officials are reminding people lava could reach some homes in just a few hours when it does. (AP Photo/File) (Uncredited)
Hawaii Volcano FILE - Molten rock flows from Mauna Loa on March 28, 1984, near Hilo, Hawaii. Hawaii officials are warning residents of the Big Island to prepare for the possibility that the world's largest active volcano may erupt given a recent spike in earthquakes at the summit of Mauna Loa. Scientists don't expect the volcano to erupt imminently, but officials are reminding people lava could reach some homes in just a few hours when it does. (AP Photo/Ken Love, File) (Ken Love)
Spain Volcano Lava flows from a volcano on the Canary island of La Palma, Spain, Saturday Oct. 2, 2021. An erupting volcano on a Spanish island off northwest Africa has blown open another fissure on its hillside. Authorities were watching Friday to see whether lava from the new fissure would join the main flow that has reached the sea. The new fissure is the third to crack open since the Cumbre Vieja crater erupted on La Palma island Sept. 19. (AP Photo/Daniel Roca) (Daniel Roca)
Spain Volcano Lava flows from a volcano on the Canary island of La Palma, Spain, Saturday Oct. 2, 2021. An erupting volcano on a Spanish island off northwest Africa has blown open another fissure on its hillside. Authorities were watching Friday to see whether lava from the new fissure would join the main flow that has reached the sea. The new fissure is the third to crack open since the Cumbre Vieja crater erupted on La Palma island Sept. 19. (AP Photo/Daniel Roca) (Daniel Roca)
APTOPIX Spain Volcano Lava flows from a volcano on the Canary island of La Palma, Spain, Saturday Oct. 2, 2021. An erupting volcano on a Spanish island off northwest Africa has blown open another fissure on its hillside. Authorities were watching Friday to see whether lava from the new fissure would join the main flow that has reached the sea. The new fissure is the third to crack open since the Cumbre Vieja crater erupted on La Palma island Sept. 19. (AP Photo/Daniel Roca) (Daniel Roca)
APTOPIX Spain Volcano Lava flows from a volcano on the Canary island of La Palma, Spain, Saturday Oct. 2, 2021. An erupting volcano on a Spanish island off northwest Africa has blown open another fissure on its hillside. Authorities were watching Friday to see whether lava from the new fissure would join the main flow that has reached the sea. The new fissure is the third to crack open since the Cumbre Vieja crater erupted on La Palma island Sept. 19. (AP Photo/Daniel Roca) (Daniel Roca)
Honduras Migrant Caravan Members of a migrant caravan begin their journey in the hopes of reaching the United States, in San Pedro Sula, Honduras, Saturday, Jan. 15, 2022. (AP Photo/Delmer Martinez) (Delmer Martinez)
Tonga Volcano Eruption People watch large waves crash on Lighthouse Point in Santa Cruz, Calif., Saturday, Jan. 15, 2022. (AP Photo/Nic Coury) (Nic Coury)
Tonga Volcano-Eruption Lifeguards speed out of the Santa Cruz Small Craft Harbor, Saturday, Jan. 15, 2022, in the morning as they respond to a vessel in distress in the Monterey Bay off the coast of Capitola as tsunami surges battered the Santa Cruz County coastline. An undersea volcano erupted in spectacular fashion Saturday near the Pacific nation of Tonga, sending tsunami waves crashing across the shore and people rushing to higher ground. Tsunami advisories were issued for Hawaii, Alaska and the U.S. Pacific coast. (Shmuel Thaler/The Santa Cruz Sentinel via AP) (Shmuel Thler)
CFP Georgia Celebration Football Georgia coach Kirby Smart cheers on the crowd during the NCAA college football champions victory celebration at Stanford Stadium in Athens, Ga.,, Saturday, Jan. 15, 2022. (Steve Schaefer/Atlanta Journal-Constitution via AP) (Steve Schaefer)