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. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
Lava enters the sea along the Kapoho coastline, building a delta that is now over 555 acres in size. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
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. This image of the lava levee and perched lava channel were taken during the morning helicopter overflight of the lower East Rift Zone, in the vicinity of Luana and Kahukai streets, in the Leilani Estates subdivision. The lava levee is the rampart in the middle of the image with small spillovers and lava crusts visible on the levee walls. The active lava channel is the silver-colored flow with lines of visible incandescence in the upper part of the image. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
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. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
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. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
At 1:20 PM HST on July 5, a collapse explosion event occurred at KÄ«lauea’s summit. The energy released by the event was equivalent to a M5.2 earthquake. The shaking produced rockfall from Halema‘uma‘u’s steep crater walls (brown dust), as viewed from a temporary observation post at Volcano House. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
Rocks generate brown dust as they tumble down the western caldera wall during the collapse explosion event on July 5, 2018. Photo taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
This image is from a temporary research camera positioned near Kapoho looking southwest. From left to right, one can see the eruptive fissures, with Fissure 15 on the far left, and Fissure 8 near the center. Webcam image taken Thursday, July 5, 2018 courtesy of U.S. Geological Survey
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 KÄ«lauea Volcano that occurred between May 5 and July 4 at about 6:00 a.m. HST. The satellite transmits a radar signal at the surface and measures the strength of the return, with bright areas indicating a strong return and dark areas a weak return. Strong returns indicate rough surfaces or slopes that point back at the radar, while weak returns come from smooth surfaces or slopes angled away from the radar. Over time, expansion of the summit eruptive vent within Halema‘uma‘u crater and the widening of Halema‘uma‘u itself are obvious. Starting in late May, the development of several cracks outside Halema‘uma‘u is clear, and inward slumping of a large portion of the western, southwestern, and northern crater rim begins. Much of this motion appears to be coincident with the small explosions from the summit that have taken place on a near daily basis since early June. The most recent radar scene, from July 4, shows continued motion along cracks over a broader area of the caldera floor, extending east of Halema‘uma‘u (these cracks are the scarps seen in recent photographs from the KeanakÄkoÊ»i overlook area). We expect this slumping to continue as long as the collapse events and overall subsidence persist.
This is a Civil Defense Message for 4 p.m., Thursday, July 5, 2018.
Hawaiian Volcano Observatory reports that Fissure 8 continues to be very active and is feeding a lava channel to the ocean at Kapoho. The flow is producing a broad ocean entry along the shoreline and continues to expand into Kapoho Beach Lots and the Four Corners intersection.
The following policies are issued.
Four Corners and Kapoho Beach Lots are closed to any access.
Be aware that spill overs of the channel and other breakouts are possible on the active flow field, do not access the active flow field due to extreme hazard.
Kamaili Road is open to residents only.
The air quality along Kamaili Road can be poor, so avoid the area if possible.
MacKenzie Beach Park and the lava flow across Highway 137 remain closed to the public.
Disaster assistance is available island-wide to individuals and businesses in Hawaii County that have been affected by the Kilauea eruption.
The Disaster Recovery Center is open daily from 8 a.m. to 8 p.m., and is located at the Keaau High School Gym. If you need a ride, buses will resume running between the two shelters and the Disaster Recovery Center between 7:30 a.m. and 9 p.m.
The Pahoa Post Office is open during normal business hours with temporary Sunday hours from 10 a.m. to 2 p.m. for mail and package distribution only for residents in the affected areas. No retail services on Sunday.
For your safety, heed warnings from Civil Defense officials and stay alert.
Ocean entry laze
Due to the lava entry at the ocean, the following policies are in effect:
Access to the area is prohibited due to the laze hazard.
Stay away from any ocean plume since it can change direction without warning.
The U.S. Coast Guard is actively monitoring the ocean entry area and enforcing a 300-meter standoff zone. Only permitted tour boats are allowed in the area.
Health hazards of laze include lung, eye and skin irritation.
Be aware that the laze plume travels with the wind and can change direction without warning.
Get the latest Vog Predictions here: http://mkwc.ifa.hawaii.edu/vmap/
Sulfur Dioxide (SO2) and Vog
Click on image for full description of air quality levels.
Volcanic gas emissions remain elevated throughout the area downwind of the vents in lower Puna.
Severe conditions may exist such as choking and inability to breathe.
Sulfur Dioxide (SO2) gas from fissures are especially dangerous for elderly, children/babies and people with respiratory problems.
County, State, and Federal partners continue to monitor the situation. You will be informed of any conditions that affect your safety.
Monitor vog levels and forecasts: People on Hawaii Island outside the area of volcanic activity are also advised to monitor levels of vog at https://vog.ivhhn.org
The residents of Puna are going through a very difficult time. We ask for your help and understanding.
Illustration of KÄ«lauea Volcano from the summit caldera to the lower East Rift Zone.
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