Volcanic Maps
The USGS Volcano Hazards Program enhances public safety and minimize social and economic disruption from volcanic unrest and eruption. We accomplish this by delivering effective forecasts, warnings, and information about volcano hazards based on scientific understanding of volcanic processes. Learn more by exploring USGS volcanic maps.
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Map of Flow Field Map of Flow Field
Recent changes to Kīlauea’s East Rift Zone lava flow field
January 24, 2018—26 years since last Mauna Loa eruption January 24, 2018—26 years since last Mauna Loa eruption
26 years since last Mauna Loa eruption
January 24, 2018—Mauna Loa poses most serious threat to South Kona January 24, 2018—Mauna Loa poses most serious threat to South Kona
Mauna Loa poses most serious threat to South Kona
January 05—Thermal map of flow field January 05—Thermal map of flow field
This map shows a thermal map over the Episode 61g lava flow.
Map of Flow Field Map of Flow Field
Recent changes to Kīlauea’s East Rift Zone lava flow field.
Map of post-1823 lava flows erupted from Mauna Loa Map of post-1823 lava flows erupted from Mauna Loa
Slope map of Mauna Loa, including lava flows erupted since 1823 (gray), showing the approximate number of hours or days it took for a flow to advance from the vent location to the ocean or maximum reach of a flow.
2012—Island of Hawai‘i map, showing Mauna Loa 2012—Island of Hawai‘i map, showing Mauna Loa
Island of Hawai‘i map, showing Mauna Loa and the other four volcanoes that make up the island. Mauna Loa structural features include summit caldera, rift zones, radial vents, and historical lava flows.
Earthquakes at Mauna Loa from June 2013 to June 2015 Earthquakes at Mauna Loa from June 2013 to June 2015
Earthquakes at Mauna Loa from June 2013 to June 2015. Green circles are 0-5 km (0-3 mi) deep and similar to ones prior to 1975 and 1984 eruptions, but cluster of 5-10 km (3-6 mi) deep quakes missing.
Map of lava flows that have erupted on Mauna Loa Volcano — 1843-1985 Map of lava flows that have erupted on Mauna Loa Volcano — 1843-1985
Map of lava flows that have erupted on Mauna Loa Volcano from 1843-1984.
July 13, 2017—New map reveals geologic history: Mauna Loa Volcano's NE flank July 13, 2017—New map reveals geologic history: Mauna Loa Volcano's NE flank
"Geologic map of the northeast flank of Mauna Loa volcano, Island of Hawai‘i," published by the U.S. Geological Survey in May 2017, shows the distribution of lava flows and other deposits covering an area from Pu‘u‘Ula‘ula ("Red Hill") on the southwest to Hilo on the northeast.
June 1, 2017—Tracking the latest moves of Kīlauea and Mauna Loa June 1, 2017—Tracking the latest moves of Kīlauea and Mauna Loa
Interferometric Synthetic Aperture Radar (InSAR) images of Kīlauea (left) and Mauna Loa (right) spanning the past several years.
March 3, 2017—Lava Inundation Zones Identified for Mauna Loa March 3, 2017—Lava Inundation Zones Identified for Mauna Loa
Inundation zones shown on map sheets as numbered colored boxes.