Surface fracture width. Lushan downtown.
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Mw6.6 Lushan China Earthquake, April 20 2013
Surface fracture width. Lushan downtown.
Mw6.6 Lushan China Earthquake, April 20 2013
Surface fracture follow WE direction. Lushan downtown.
Surface fracture follow WE direction. Lushan downtown.
Mw6.6 Lushan China Earthquake, April 20 2013
Damage to a village house. Longmenxiang.
Damage to a village house. Longmenxiang.
Mw6.6 Lushan China Earthquake, April 20 2013
Damage to a village house. Longmenxiang.
Damage to a village house. Longmenxiang.
Mw6.6 Lushan China Earthquake, April 20 2013
Damage to a village house. Longmenxiang.
Damage to a village house. Longmenxiang.
Cascades Volcano Observatory (CVO) staff in front of the CVO office...
Cascades Volcano Observatory (CVO) staff in front of the CVO office building in Vancouver, Washington, May 1, 2018
Cascades Volcano Observatory (CVO) staff in front of the CVO office building in Vancouver, Washington, May 1, 2018
NetQuakes—Extending seismic monitoring with citizen science
Map showing locations of USGS NetQuakes recorders and epicenter of M3.2 earthquake occurring on April 3, 2013. Around the map are plots of the strongest shaking recorded at each of the NetQuakes sites associated with this earthquake. The plots are not adjusted to reflect differences in shaking among the individual sites.
Map showing locations of USGS NetQuakes recorders and epicenter of M3.2 earthquake occurring on April 3, 2013. Around the map are plots of the strongest shaking recorded at each of the NetQuakes sites associated with this earthquake. The plots are not adjusted to reflect differences in shaking among the individual sites.
Kahauale‘a flow from Pu‘u ‘Ō‘ō advancing NE very slowly
The two active flows (Kahauale‘a and Peace Day) are both fed from vents high on Pu‘u ‘Ō‘ō cone. This view (looking southwest) shows Pu‘u ‘Ō‘ō crater. In the foreground, a lava pond and small spots of orange glow mark the location of the vent for the Kahauale‘a flow.
The two active flows (Kahauale‘a and Peace Day) are both fed from vents high on Pu‘u ‘Ō‘ō cone. This view (looking southwest) shows Pu‘u ‘Ō‘ō crater. In the foreground, a lava pond and small spots of orange glow mark the location of the vent for the Kahauale‘a flow.
View looking NE towards Kalapana from the ocean entry. The small w...
View looking northeast towards Kalapana from the ocean entry. The small white dots in the distance are houses in Kalapana Gardens subdivision.
View looking northeast towards Kalapana from the ocean entry. The small white dots in the distance are houses in Kalapana Gardens subdivision.
This steep spatter cone near north rim of Pu‘u ‘Ō‘ō was making loud...
This steep spatter cone near the north rim of Pu‘u ‘Ō‘ō crater was making loud gas jetting sounds, presumably due to gas forced through the small glowing holes near the top of the cone.
This steep spatter cone near the north rim of Pu‘u ‘Ō‘ō crater was making loud gas jetting sounds, presumably due to gas forced through the small glowing holes near the top of the cone.
Kahauale‘a flow — Active Lava Flow
The Kahauale‘a flow remains active, with the flow front today about 4.9 km (3 miles) northeast of Pu‘u ‘Ō‘ō. The flow is still on earlier Pu‘u ‘Ō‘ō flows, but has been slowly approaching the edge of the forest.
The Kahauale‘a flow remains active, with the flow front today about 4.9 km (3 miles) northeast of Pu‘u ‘Ō‘ō. The flow is still on earlier Pu‘u ‘Ō‘ō flows, but has been slowly approaching the edge of the forest.
Good weather provides clear views of the ocean entry at Kupapa‘u
Numerous ocean entry points were active today at Kupapa‘u, with a plume of discolored water drifting west.
Numerous ocean entry points were active today at Kupapa‘u, with a plume of discolored water drifting west.
ocean entry points and discolored water at Kupapa‘u. The thermal c...
Another view of the ocean entry points and discolored water at Kupapa‘u. The thermal camera today showed that water surface temperatures were up 50 degrees Celsius (122 degrees Fahrenheit) a short distance out from the entry points. Just beyond the ocean entry, the light colored areas represent active breakouts. On the pali, fume marks the path of the lava tube.
Another view of the ocean entry points and discolored water at Kupapa‘u. The thermal camera today showed that water surface temperatures were up 50 degrees Celsius (122 degrees Fahrenheit) a short distance out from the entry points. Just beyond the ocean entry, the light colored areas represent active breakouts. On the pali, fume marks the path of the lava tube.
View looking NE towards Kalapana from the ocean entry. The small w...
View looking northeast towards Kalapana from the ocean entry. The small white dots in the distance are houses in Kalapana Gardens subdivision.
View looking northeast towards Kalapana from the ocean entry. The small white dots in the distance are houses in Kalapana Gardens subdivision.
start of the lava tube on the Kahauale‘a flow, near rim of Pu‘u ‘Ō‘ō.
A closer look at the start of the lava tube on the Kahauale‘a flow, near the rim of Pu‘u ‘Ō‘ō crater. See photo above for aerial view. Unfortunately a direct view of the lava stream was not available here.
A closer look at the start of the lava tube on the Kahauale‘a flow, near the rim of Pu‘u ‘Ō‘ō crater. See photo above for aerial view. Unfortunately a direct view of the lava stream was not available here.
Groundwater collection using a piezometer
Adrian Mann is using a piezometer to extract submarine groundwater to analyze for geochemical parameters in Indian River Bay, DE.
Adrian Mann is using a piezometer to extract submarine groundwater to analyze for geochemical parameters in Indian River Bay, DE.
Crystals tell us a lot about Kīlauea's ongoing eruption
Pele's hair covers much of the ground in the area immediately downwind of the vent at Halema‘uma‘u Crater. Accumulations about a meter (yard) wide are found on the windward sides of the curbs in the Halema‘uma‘u parking lot, which is closed to the public because of the ongoing volcanic hazard (May 3, 2012).
Pele's hair covers much of the ground in the area immediately downwind of the vent at Halema‘uma‘u Crater. Accumulations about a meter (yard) wide are found on the windward sides of the curbs in the Halema‘uma‘u parking lot, which is closed to the public because of the ongoing volcanic hazard (May 3, 2012).
Scientists performing monitoring duties in the AVO operations room
Scientists performing monitoring duties in the Alaska Volcano Observatory operations room.
Scientists performing monitoring duties in the Alaska Volcano Observatory operations room.
Survey vessel in Barnegat Bay, NJ during a beautiful sunset
Assessing how storms move sediment during storms provides coastal scientists and managers the information they need to keep coastal communities safe and prosperous. And, lucky for us, provides many opportunities to see great coastal sunsets!
Assessing how storms move sediment during storms provides coastal scientists and managers the information they need to keep coastal communities safe and prosperous. And, lucky for us, provides many opportunities to see great coastal sunsets!
Super models help with volcano monitoring
A model of the magma reservoir 1.5 km (1 mi) below Halema‘uma‘u Crater at the summit of Kīlauea Volcano.
A model of the magma reservoir 1.5 km (1 mi) below Halema‘uma‘u Crater at the summit of Kīlauea Volcano.
The Kahauale‘a flow, at the center of the photo, has reached 4.4 km...
The Kahauale‘a flow, at the center of the photo, has reached 4.4 km (2.7 miles) northeast from its source in Pu‘u ‘Ō‘ō, which is in the background.
The Kahauale‘a flow, at the center of the photo, has reached 4.4 km (2.7 miles) northeast from its source in Pu‘u ‘Ō‘ō, which is in the background.