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Volcano Hazard Program images.
A small lava lake, which has been present on the northeast side of Pu‘u ‘Ō‘ō's crater floor for nearly a year, has evolved into a tiny pond perched several meters (yards) above the surrounding crater floor, as pictured here. The pond sits near the top of a mound of lava composed of spatter cones and lava pond overflows.
A small lava lake, which has been present on the northeast side of Pu‘u ‘Ō‘ō's crater floor for nearly a year, has evolved into a tiny pond perched several meters (yards) above the surrounding crater floor, as pictured here. The pond sits near the top of a mound of lava composed of spatter cones and lava pond overflows.
The eastern rim of Pu‘u ‘Ō‘ō is no longer visible, having been buried by flows mostly from the small lava lake on the northeast side of the crater floor. A mound of lava with a complex of spatter cones, visible in the background, now surrounds the lava lake, which is only visible from the air.
The eastern rim of Pu‘u ‘Ō‘ō is no longer visible, having been buried by flows mostly from the small lava lake on the northeast side of the crater floor. A mound of lava with a complex of spatter cones, visible in the background, now surrounds the lava lake, which is only visible from the air.
This photo, identical to the previous one, just includes labels for the flows that spilled from the northern and southern sides of the crater.
This photo, identical to the previous one, just includes labels for the flows that spilled from the northern and southern sides of the crater.
This photo, identical to the previous one, just includes labels for the flows that spilled from the northern and southern sides of the crater.
This photo, identical to the previous one, just includes labels for the flows that spilled from the northern and southern sides of the crater.
The lava flow fed the northeastern lava lake in Pu‘u ‘Ō‘ō remains weakly active at the northern base of the Pu‘u ‘Ō‘ō cone. The front of the flow is burning lichen on old ‘A‘ā flows erupted from Pu‘u ‘Ō‘ō during 1983-1986. The eastern edge of Pu‘u ‘Ō‘ō is at the upper right side of the photo.
The lava flow fed the northeastern lava lake in Pu‘u ‘Ō‘ō remains weakly active at the northern base of the Pu‘u ‘Ō‘ō cone. The front of the flow is burning lichen on old ‘A‘ā flows erupted from Pu‘u ‘Ō‘ō during 1983-1986. The eastern edge of Pu‘u ‘Ō‘ō is at the upper right side of the photo.
Lava flows have spilled from Pu‘u ‘Ō‘ō crater over the past few weeks. One flow went out the southern end of the crater and traveled a short distance downslope to the southeast before stopping.
Lava flows have spilled from Pu‘u ‘Ō‘ō crater over the past few weeks. One flow went out the southern end of the crater and traveled a short distance downslope to the southeast before stopping.
The eastern rim of Pu‘u ‘Ō‘ō is no longer visible, having been buried by flows mostly from the small lava lake on the northeast side of the crater floor. A mound of lava with a complex of spatter cones, visible in the background, now surrounds the lava lake, which is only visible from the air.
The eastern rim of Pu‘u ‘Ō‘ō is no longer visible, having been buried by flows mostly from the small lava lake on the northeast side of the crater floor. A mound of lava with a complex of spatter cones, visible in the background, now surrounds the lava lake, which is only visible from the air.
The lava flow fed the northeastern lava lake in Pu‘u ‘Ō‘ō remains weakly active at the northern base of the Pu‘u ‘Ō‘ō cone. The front of the flow is burning lichen on old ‘A‘ā flows erupted from Pu‘u ‘Ō‘ō during 1983-1986. The eastern edge of Pu‘u ‘Ō‘ō is at the upper right side of the photo.
The lava flow fed the northeastern lava lake in Pu‘u ‘Ō‘ō remains weakly active at the northern base of the Pu‘u ‘Ō‘ō cone. The front of the flow is burning lichen on old ‘A‘ā flows erupted from Pu‘u ‘Ō‘ō during 1983-1986. The eastern edge of Pu‘u ‘Ō‘ō is at the upper right side of the photo.
This photo, identical to the previous one, just includes labels for the flows that spilled from the northern and southern sides of the crater.
This photo, identical to the previous one, just includes labels for the flows that spilled from the northern and southern sides of the crater.
The lava flow fed the northeastern lava lake in Pu‘u ‘Ō‘ō remains weakly active at the northern base of the Pu‘u ‘Ō‘ō cone. The front of the flow is burning lichen on old ‘A‘ā flows erupted from Pu‘u ‘Ō‘ō during 1983-1986. The eastern edge of Pu‘u ‘Ō‘ō is at the upper right side of the photo.
The lava flow fed the northeastern lava lake in Pu‘u ‘Ō‘ō remains weakly active at the northern base of the Pu‘u ‘Ō‘ō cone. The front of the flow is burning lichen on old ‘A‘ā flows erupted from Pu‘u ‘Ō‘ō during 1983-1986. The eastern edge of Pu‘u ‘Ō‘ō is at the upper right side of the photo.
Several streams of lava were entering the water near Kupapa`u Point. Here at the eastern end of the ocean entry a narrow stream is battered by the surf.
Several streams of lava were entering the water near Kupapa`u Point. Here at the eastern end of the ocean entry a narrow stream is battered by the surf.
A lava fountain during the opening episode of the Mauna Ulu eruption feeds lava flows that cover Chain of Craters Road. Both ‘Ālo‘i Crater (lower left) and ‘Alae Crater (upper right) were filled with lava later in the eruption. Photo taken on May 28, 1969.
A lava fountain during the opening episode of the Mauna Ulu eruption feeds lava flows that cover Chain of Craters Road. Both ‘Ālo‘i Crater (lower left) and ‘Alae Crater (upper right) were filled with lava later in the eruption. Photo taken on May 28, 1969.
Several streams of lava were entering the water near Kupapa`u Point. Here at the eastern end of the ocean entry a narrow stream is battered by the surf.
Several streams of lava were entering the water near Kupapa`u Point. Here at the eastern end of the ocean entry a narrow stream is battered by the surf.
Breakouts near the shoreline have diminished over the past week, but surface flows remain active closer to the base of the pali on the coastal plain.
Breakouts near the shoreline have diminished over the past week, but surface flows remain active closer to the base of the pali on the coastal plain.
Lakes and drainages within the watershed of Mount St. Helens.
Lakes and drainages within the watershed of Mount St. Helens.
A small pāhoehoe lobe flows into a crack on the coastal plain.
A small pāhoehoe lobe flows into a crack on the coastal plain.
As this pāhoehoe lobe flows into the crack, the surface layer rolls up creating a ropy texture that is common on pāhoehoe flows.
As this pāhoehoe lobe flows into the crack, the surface layer rolls up creating a ropy texture that is common on pāhoehoe flows.
The ocean entry near Kupapa`u Point remains active, with numerous streams of lava entering the water over a wide section of coastline.
The ocean entry near Kupapa`u Point remains active, with numerous streams of lava entering the water over a wide section of coastline.
A portion of this pāhoehoe flow is channeled into a crack by two surrounding tumuli.
A portion of this pāhoehoe flow is channeled into a crack by two surrounding tumuli.
Only a few scattered breakouts were active near the shoreline, with most of the activity on the coastal plain closer to the base of the pali. This pāhoehoe lobe was active near the east margin of the Peace Day flow field just a few hundred meters (yards) from the coastline.
Only a few scattered breakouts were active near the shoreline, with most of the activity on the coastal plain closer to the base of the pali. This pāhoehoe lobe was active near the east margin of the Peace Day flow field just a few hundred meters (yards) from the coastline.
A surge of "blue glassy" pāhoehoe flows out of an inflated flow margin near the shoreline. This type of lava is thought to be stored within an inflating flow for up to a few days, changing its color and texture.
A surge of "blue glassy" pāhoehoe flows out of an inflated flow margin near the shoreline. This type of lava is thought to be stored within an inflating flow for up to a few days, changing its color and texture.