Images

Due to the instability of the sea cliff above the ocean entry and other hazards created by molten lava flowing into the sea, Hawai‘i Volcanoes National Park has established a viewing area (noted by yellow arrow in photo) from which the ocean entry can be seen in relative safety.

The lava stream, pouring out of the lava tube on the sea cliff at the Kamokuna ocean entry, continues and was similar to yesterday. The stream appeared wider (as viewed from this angle) today compared to yesterday, and often had holes in the thin sheet. The entry was still producing small, pulsating littoral explosions.

Using a thermal image of the crack above Kīlauea volcano's ocean entry (steam from lava flowing into the sea is visible at the top of the left photo), HVO geologists determined that the temperature within the eastern end of the crack is up to about 220 degrees Celsius (428 degrees Fahrenheit).

At Kīlauea's ocean entry on Jan. 28 and 29, the interaction of molten lava flowing into cool seawater caused pulsating littoral explosions that threw spatter (fragments of molten lava) high into the air. Some of these incandescent clasts fell on top of the sea cliff behind the ocean entry, forming a small spatter cone.

A close up of the stream near the spot where it exits the tube. This view was only possible with a very high magnification lens.

An open lava stream continues to pour out of the lava tube, perched high on the sea cliff, and into the ocean. The stream was remarkably steady today, but produced pulsating littoral explosions that threw spatter onto the sea cliff.

This video shows a close-up of the base of the lava stream, where ripples in the narrow sheet of lava are visible.

A wider view of the ocean entry.

Near the base of the lava stream, just above where it impacted the water, there were commonly ripples in the stream, suggesting this was a narrow sheet of lava. These ripples can be seen on the lower right side of the lava stream. A few small, steaming clasts thrown up by a small littoral explosion are visible in front of the stream.

This video shows a wider view of the open lava stream at the ocean entry, and the frequent littoral explosions.

HVO geophysicist shares information at a public outreach event for Volcano Awareness Month at the University of Hawai‘i at Hilo in January 2017.

Yellowstone National Park is the site of Earth's largest concentration of geysers, as well as steam vents, hot springs, and mudpots. These hydrothermal features attest to the region's volcanic history, which spans over two million years and is the reason that the Yellowstone Volcano Observatory was established.

A steady stream of lava exiting the episode 61g lava tube pours into the ocean at the Kamokuna ocean entry. The interaction between the lava and ocean water causes explosive reactions, throwing bits of lava (seen in the photo at the base of the lava stream).

Misty weather created a double rainbow over Pūlama Pali and the 61g flow field. Fume trace from the tube can be seen at bottom center.

Since the delta collapse on December 31, 2016 there has not been any evidence of the lava delta rebuilding. The fume trace of the 61g tube system on the coastal plain is visible up slope from the ocean entry. The cove in the sea cliff (at center) is where the ~4 acre portion of old sea cliff collapsed into the ocean after the delta fell in.

A close up of the lava stream pouring out of the tube and directly into the Pacific Ocean.

This video clip shows the lava stream - about 1-2 m or yards wide - pouring out of the tube into the Pacific Ocean, triggering pulsating explosions that are throwing bits of lava onto the top of the sea cliff.

This thermal image shows the Kamokuna ocean entry. Two plumes of hot (scalding) water branch out from the entry point. The lava stream itself is the very hot feature right of center. Just above the lava stream, about 10 meters (yards) behind the sea cliff, is a narrow line of high temperatures that appears to be a hot crack.

Analysis of shoreline changes at Bogoslof volcano due to eruptive activity between January 11 and 24, 2017. The base image is a Worldview-2 satellite image collected on January 24, 2017. The approximate location of the shoreline on January 11, 2017 is shown by the dashed orange line.

Kīlauea Volcano's summit lava lake level typically rises and falls in concert with summit inflation and deflation, as shown by these two HVO webcam images. The left image was captured a week ago (on Jan. 17, 2017), when the lava level was 52.5 m (172 ft) below the vent rim, the lowest level measured since April 8, 2016. The right image, captured this morning (Jan.

Kīlauea Volcano's summit lava lake level rose over the past day with steep summit inflation, providing improved views of spattering from visitor overlooks in Hawai‘i Volcanoes National Park.