Graphic from the Great Hawaii ShakeOut website (http://shakeout.org/hawaii/) showing the recommended actions to protect yourself during an earthquake.
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Volcano Hazard Program images.
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Lessons learned from the 2006 Kīholo Bay earthquakes
Graphic from the Great Hawaii ShakeOut website (http://shakeout.org/hawaii/) showing the recommended actions to protect yourself during an earthquake.
Alert levels and aviation color code icons for volcanoes within the...
Alert levels and aviation color code icons for volcanoes within the USGS area of responsibility.
Alert levels and aviation color code icons for volcanoes within the USGS area of responsibility.
Small-scale map of flow field
This small-scale map shows Kīlauea's active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 is shown in red. The yellow lines show the active lava tube system.
This small-scale map shows Kīlauea's active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 is shown in red. The yellow lines show the active lava tube system.
Map showing flow field changes
This map shows recent changes to Kīlauea's active East Rift Zone lava flow field. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 (based on satellite imagery) is shown in red. The yellow lines show the active lava tube system.
This map shows recent changes to Kīlauea's active East Rift Zone lava flow field. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 (based on satellite imagery) is shown in red. The yellow lines show the active lava tube system.
Lava Sampling
This is an animated GIF, taken from a longer video, showing the moment that this geologist from the Hawaiian Volcano Observatory (HVO) scoops up lava from an active flow and drops it into a bucket of water to cool it down.
This is an animated GIF, taken from a longer video, showing the moment that this geologist from the Hawaiian Volcano Observatory (HVO) scoops up lava from an active flow and drops it into a bucket of water to cool it down.
Scattered breakouts remain active NE of Pu‘u ‘Ō‘ō
The June 27th lava flow remains active with scattered breakouts northeast of Pu‘u ‘Ō‘ō. The farthest active breakout today was about 6.5 km (4 miles) from Pu‘u ‘Ō‘ō. This photograph shows activity along the northern flow boundary, where breakouts continue to burn vegetation.
The June 27th lava flow remains active with scattered breakouts northeast of Pu‘u ‘Ō‘ō. The farthest active breakout today was about 6.5 km (4 miles) from Pu‘u ‘Ō‘ō. This photograph shows activity along the northern flow boundary, where breakouts continue to burn vegetation.
This view looks west towards Pu‘u ‘Ō‘ō, which can be seen in the up...
This view looks west towards Pu‘u ‘Ō‘ō, which can be seen in the upper left. The most distant active breakouts today were located near the center of the photograph, at a spot roughly 6.5 km (4 miles) from Pu‘u ‘Ō‘ō.
This view looks west towards Pu‘u ‘Ō‘ō, which can be seen in the upper left. The most distant active breakouts today were located near the center of the photograph, at a spot roughly 6.5 km (4 miles) from Pu‘u ‘Ō‘ō.
Geologists hike through thick fume and fog to reach the lava pond i...
HVO geologists hike through thick fume and fog to reach the lava pond in the western portion of Pu‘u ‘Ō‘ō crater.
HVO geologists hike through thick fume and fog to reach the lava pond in the western portion of Pu‘u ‘Ō‘ō crater.
A lava pond has been active in the Pu‘u ‘Ō‘ō for several months
A lava pond has been active in the western portion of Pu‘u ‘Ō‘ō crater for several months.
A lava pond has been active in the western portion of Pu‘u ‘Ō‘ō crater for several months.
Lava sample collection from the perspective of an Geologist
This Quicktime video shows lava sample collection from the perspective of an HVO geologist.
This Quicktime video shows lava sample collection from the perspective of an HVO geologist.
No major changes in the lava lake at Halema‘uma‘u
This wide view shows the lava lake active within the Overlook crater, which is set within the larger Halema‘uma‘u Crater. There have been no major changes in the lake in recent weeks. This morning the lava lake was roughly 60 meters (200 feet) below the rim of the Overlook crater.
This wide view shows the lava lake active within the Overlook crater, which is set within the larger Halema‘uma‘u Crater. There have been no major changes in the lake in recent weeks. This morning the lava lake was roughly 60 meters (200 feet) below the rim of the Overlook crater.
lava lake in the Overlook crater.
A closer look at the lava lake in the Overlook crater.
A closer look at the lava lake in the Overlook crater.
Bottled soda helps us to understand volcanic eruptions
Replica of a 19th century soda bottle that was sealed with a blue marble (visible in lower crimp of the bottle). Bottles like this played a part in creating the bottled soda analogy of how and why volcanoes erupt. The Halema‘uma‘u Overlook gas plume is visible in the background. USGS photo.
Replica of a 19th century soda bottle that was sealed with a blue marble (visible in lower crimp of the bottle). Bottles like this played a part in creating the bottled soda analogy of how and why volcanoes erupt. The Halema‘uma‘u Overlook gas plume is visible in the background. USGS photo.
Routine check of summit cameras
This panorama is from the north rim of Mauna Loa's summit caldera, Moku‘āweoweo, and shows the thermal camera watching for changes on the caldera floor.
This panorama is from the north rim of Mauna Loa's summit caldera, Moku‘āweoweo, and shows the thermal camera watching for changes on the caldera floor.
An Geologist performs a routine check of the thermal camera and web...
An HVO geologist performs a routine check of the thermal camera and webcam at the summit of Mauna Loa.
An HVO geologist performs a routine check of the thermal camera and webcam at the summit of Mauna Loa.
Mauna Loa - Earthquake and Deformation Data 2010-2016
TOP: Mauna Loa weekly earthquake rates between 2010 and September 17, 2015. Blue bars indicate the number of earthquakes that were located by the USGS Hawaiian Volcano Observatory seismic network. Earthquakes of all magnitudes are plotted. Subtle increases in earthquake rates started in mid-2013, while more obvious changes in rates started in 2014.
TOP: Mauna Loa weekly earthquake rates between 2010 and September 17, 2015. Blue bars indicate the number of earthquakes that were located by the USGS Hawaiian Volcano Observatory seismic network. Earthquakes of all magnitudes are plotted. Subtle increases in earthquake rates started in mid-2013, while more obvious changes in rates started in 2014.
Mauna Loa 1975 Eruption
After 25 years of slumber, Mauna Loa woke with a spectacular, but short-lived, eruption that began just before midnight on July 5. Lava fountains soon erupted from fissures extending across the length of Moku‘āweoweo, Mauna Loa's summit caldera, and into the upper ends of the volcano's northeast and southwest rift zones.
After 25 years of slumber, Mauna Loa woke with a spectacular, but short-lived, eruption that began just before midnight on July 5. Lava fountains soon erupted from fissures extending across the length of Moku‘āweoweo, Mauna Loa's summit caldera, and into the upper ends of the volcano's northeast and southwest rift zones.
Mauna Loa 1950 Eruption
On June 1, 1950, a 2.4-km (1.5 mi) long fissure erupted high on Mauna Loa's Southwest Rift Zone at 9:04 p.m. Minutes later, the roar of lava fountains could be heard up to 24 km (15 mi) away.
On June 1, 1950, a 2.4-km (1.5 mi) long fissure erupted high on Mauna Loa's Southwest Rift Zone at 9:04 p.m. Minutes later, the roar of lava fountains could be heard up to 24 km (15 mi) away.
Volcano Alert Level for Mauna Loa Elevated from Normal to Advisory
USGS Hawaiian Volcano Observatory scientists are closely monitoring recent signs of unrest on Mauna Loa, the largest active volcano on Earth. In this 1985 aerial photo, Mauna Loa looms above Kīlauea Volcano's summit caldera (left center) and nearly obscures Hualālai in the far distance (upper right). USGS photo.
USGS Hawaiian Volcano Observatory scientists are closely monitoring recent signs of unrest on Mauna Loa, the largest active volcano on Earth. In this 1985 aerial photo, Mauna Loa looms above Kīlauea Volcano's summit caldera (left center) and nearly obscures Hualālai in the far distance (upper right). USGS photo.
The Art (and Science) of Assigning Volcano Alerts Levels
The four-tiered USGS Volcanic Activity Alert-Notification System uses Volcano Alert Level terms and Aviation Color Codes to inform people about a volcano's status and potential volcanic ash hazards. For more information about this system, please see http://pubs.usgs.gov/fs/2006/3139/.
The four-tiered USGS Volcanic Activity Alert-Notification System uses Volcano Alert Level terms and Aviation Color Codes to inform people about a volcano's status and potential volcanic ash hazards. For more information about this system, please see http://pubs.usgs.gov/fs/2006/3139/.
Small-scale map of flow field
This small-scale map shows Kīlauea's active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. The area of the flow on August 26 is shown in pink, while widening and advancement of the flow as of September 11 is shown in red. The yellow lines show the active lava tube system.
This small-scale map shows Kīlauea's active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. The area of the flow on August 26 is shown in pink, while widening and advancement of the flow as of September 11 is shown in red. The yellow lines show the active lava tube system.