Skip to main content
U.S. flag

An official website of the United States government

Halemaʻumaʻu crater and lava lake profile

Detailed Description

This plot shows the elevation of Halemaʻumaʻu crater along a line running from west (left) to east (right). The pre-2018 collapse line (blue) shows the relatively shallow depth of Halemaʻumaʻu during the lava lake period of 2008–2018. The post-collapse (2019) elevation line is black, showing that 500 m (1640 ft) of collapse occurred during the 2018 eruption. The eruption which began in December 2020 created a lava lake that reached a depth of 226 m (740 ft) by May 2021 (green line). The current eruption has caused the lake surface to rise another 60 m (200 ft) and overflow a down-dropped block (red line). USGS figure. 


Public Domain.