Images

Close view of the "end" of the open lava channel where lava moves beneath the crusted ‘a‘ā flow.

This animated GIF shows a sequence of radar amplitude images that were acquired by the Agenzia Spaziale Italiana CosmoSkyMed satellite system. The images illustrate changes to the caldera area of Kīlauea Volcano that occurred between May 5 and July 8 at about 6:00 a.m. HST.

View of Fissure 8 and channel during the morning overflight on July 7.

For several years, a special ultraviolet camera has been located near Keanakākoʻi Crater at Kīlauea's summit. The camera was capable of detecting SO2 gas coming from Halema‘uma‘u crater. This morning, the camera was removed because there is very little SO2 to measure these days at the summit.

The WorldView-3 satellite acquired this view of Kīlauea's summit on July 3. Despite a few clouds, the area of heaviest fractures in the caldera is clear. Views into the expanding Halema‘uma‘u crater reveal a pit floored by rubble. HVO, on the northwest caldera rim, is labeled.

Ocean entry in Kapoho as viewed from morning helicopter overflight.

Dawn at Fissure 8

Rocks generate brown dust as they tumble down the western caldera wall during the collapse explosion event on July 5, 2018.

At 1:20 PM HST on July 5, a collapse explosion event occurred at Kīlauea's summit. The energy released by the event was equivalent to a M5.2 earthquake.

Near the Kapoho Crater, in the area called Four Corners, the lava channel makes a 90-degree bend. After lava exits the bend, it makes a short drop to form a lavafall. A side channel makes a short surface diversion before rejoining the existing channel.

Lava, from small overflows, cools and congeals along the banks of the lava channel to build lava levees. The levees also build up as moving lava pushes cooled crust over the edge.

Lava enters the sea along the Kapoho coastline, building a delta that is now over 555 acres in size.

Aerial view of the lava channel and active margins between Kapoho Crater (upper right) and the coast (lower left). The northern margin of the flow field is advancing at several points in the area of Kapoho Ag and Beach Lots (vegetated areas in center of image). Image courtesy of Hawaii County Fire Department.

Having crusted over about 0.8 km (0.5 mi) upchannel from the ocean entry, lava oozes from the flow's molten interior to enter the sea along a broad flow front on the northern (Kapoho) side of the flow.

The lava channel from fissure 8 jumped its banks near Kapoho Crater where the channel makes a 90 degree bend. The flow within the channel was diverted around a constricted area and joined the channel again "downstream" to the south (left).

Near the coast, the northern margin of the flow field is still oozing pasty lava at several points in the area of Kapoho Agricultural and Beach Lots.

Sunrise view of Halema‘uma‘u crater as seen from the USGS observation point from Volcano House in Hawai‘i Volcanoes National Park.

Lava within the fissure 8 cone roils and churns where it eupts from the vent and flows rapidly down the well-established channel. This image was captured via a Mavic Pro drone courtesy of the DOI/USGS Unmanned Aircraft Systems team.

USGS Unmanned Aircraft Systems image of fissure 8 looking east.

USGS scientist observes the glow of fissure 8 fountain and channel within Leilani Estates. Steam rises from cracks and hot spots within the tephra deposit surrounding the cone.

This animated GIF shows a sequence of radar amplitude images that were acquired by the Agenzia Spaziale Italiana CosmoSkyMed satellite system. The images illustrate changes to the caldera area of Kīlauea Volcano that occurred between May 5 and July 4 at about 6:00 a.m. HST.