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The USGS Hawaiian Volcano Observatory (HVO) is responsible for monitoring six active volcanoes on the Islands of Hawai‘i and Maui. The Island of Hawai‘i, with four active volcanoes, is liveliest. Between 1912 and 2012, there were nearly 50 Kīlauea eruptions, 12 Mauna Loa eruptions, and one Hualālai intrusion of magma.
Extending from sea level to 13,680 feet, the park encompasses the summits of two of the world's most active volcanoes - Kīlauea and Mauna Loa - and is a designated International Biosphere Reserve and UNESCO World Heritage Site.
Steam rises as lava pours into the Pacific Ocean on the Big Island of Hawaii. Over millions of years, volcanic eruptions have not only built the Hawaiian archipelago, they continually transform...
Hawaiʻi Volcanoes National Park is a national park of the United States located in Hawaii on the island of Hawaii. The park encompasses two active volcanoes: Kīlauea, one of the world's most active volcanoes, and Mauna Loa, the world's largest shield volcano.
Display earthquake colors according to their depth or age. HVO monitors earthquakes and the active volcanoes in Hawaii, assesses their hazards, issues warnings, and advances scientific understanding to reduce the impacts of volcanic eruptions.
Kīlauea is one of the world's most active volcanoes; it erupted most recently on the middle East Rift Zone from September 15-20, 2024, within a remote area of Hawaiʻi Volcanoes National Park. See real-time video of the summit of Kīlauea.
The USGS Hawaiian Volcano Observatory (HVO) is responsible for monitoring six active volcanoes on the Islands of Hawai‘i and Maui. The Island of Hawai‘i, with four active volcanoes, is liveliest. Between 1912 and 2012, there were nearly 50 Kīlauea eruptions, 12 Mauna Loa eruptions, and one Hualālai intrusion of magma .
Kīlauea is the youngest and most active volcano on the island of Hawaiʻi, and one of the busiest in the world. In recorded history, Kīlauea has only had short periods of repose. It has covered almost 90% of its surface in lava flows within the last 1,000 years.
Why Are Volcanoes Here? The eight Hawaiian Islands we know today are only the most recent formations in a chain of over 80 volcanoes that stretch for thousands of miles to the northwest, both above and below sea-level.
Discover 150 miles of hiking trails through volcanic craters, scalded deserts and rainforests, as well as petroglyphs, a walk-in lava tube and one of the most active volcanoes on earth, Kīlauea, which has been erupting since 1983. More