Sei Whale surface feeding on its' side. Jeffreys Ledge, May 27, 2017. M. White photo.

This morning, the height of the lava lake at Kīlauea's summit was roughly 3. Overlook crater. There have been no significant changes in ground deformation or seismicity rates across the volcano. Summit Observations: No significant change in ground tilt was recorded by summit tiltmeters over the past day, with little change in the lava lake level. This morning, the lake level was still roughly 3. Overlook crater. Sulfur dioxide gas emission rates continue to be high. Seismicity rates were at normal, background levels, with tremor fluctuations related to lava lake spattering.

Webcam views of the lava lake can be found at http: //hvo. Puʻu ʻŌʻō Observations: In the past day, seismic activity has continued at normal, background rates. The tiltmeter on Puʻu ʻŌʻō cone showed no significant change over the past day.

Webcams showed persistent glow from long- term sources within the crater and from a small lava pond on the west side of the crater overnight. The sulfur dioxide emission rates from the East Rift Zone vents have been steady over the past several months, and remain significantly lower than the summit emissions. Lava Flow Observations: Lava from the episode 6. Kamokuna delta, and into the sea. Webcam views indicate that scattered breakouts remain active above the pali and on the coastal plain. The episode 6. 1g flows do not pose a threat to nearby communities at this time.

At the ocean entry, lava entering the water continues to produce a weak steam plume. Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs.

Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea.

This occurred most recently on May 3. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see these fact sheets for additional information: https: //pubs. For comprehensive information on volcanic air pollution please see the vog dashboard at: www. Watch Mirror Mirror Megavideo here.