The Hawaiian Volcano Observatory/USGS just issued this; I think they mean that the overall deflation at Kilauea’s floor has been 3 feet, not that it dropped that much today. But it’s worth giving you a heads-up because the floor of Kilauea’s summit crater has collapsed before (there’s nobody in it, don’t worry) and it could again – there are some surprising parallels between this ongoing activity and what went on in 1924.
Anyway, here is the update. To follow this eruption in more detail, just click the link in the upper right corner of this page. And thank you for your interest!
HAWAIIAN VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Wednesday, May 16, 2018, 2:35 PM HST (Thursday, May 17, 2018, 00:35 UTC)
KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: RED
KĪLAUEA INFORMATION STATEMENT
Strong earthquakes within the summit of Kīlauea Volcano continue in response to ongoing deflation and lava column drop. As of the afternoon of May 16, the floor of Kīlauea caldera has dropped approximately 3 feet (90 cm). This movement is stressing faults around the caldera of Kilauea, causing them to move and resulting in strong earthquakes of up to magnitude 4.4 thus far.
Employees at the Hawaiian Volcano Observatory, Hawai`i Volcanoes National Park and nearby residents are reporting frequent ground shaking and damage to roads and buildings. Hawaii County Police reports cracks across Highway 11 between mile markers 28 and 29. Although these are passable, motorists are urged to use caution.
As deflation continues, strong earthquakes in the area around Kilauea Volcano’s summit are expected to continue and may become more frequent. Areas further from these earthquakes may feel some ground motion as well, but much less severe.
The shallow depths of these earthquakes make them more damaging in the immediate vicinity of the epicenter, and individuals need to take precautions to minimize damage from the shaking, including the removal of unstable items from walls and shelves. Steep slopes should be avoided as they may become destabilized during strong earthquakes.