An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This map shows deformation at Kīlauea volcano associated with the ongoing summit eruption that started on December 23, 2024. The image covers the timespan from April 9–17, 2025, using data recorded by the Italian Space Agency's (ASI) COSMO-SkyMed Second Generation satellite constellation. Colored fringes denote areas of ground deformation, with more fringes indicating more deformation. Each color cycle represents 1.5 centimeters (0.6 inches) of range change. The symbol in the upper left indicates the satellite's orbit direction (arrow) and look direction (bar). The round fringes within and around Kaluapele (Kīlauea summit caldera) indicate ground surface inflation over this time period (during the pause between episodes 17 and 18) as magma accumulates in the Halemaʻumaʻu magma chamber at a depth of approximately 1.5 kilometers (1 mile) below the ground surface. The vents for the ongoing eruption are located near the southwestern corner of the active lava flow field (pink area). For information about interpreting interferograms, see this "Volcano Watch" article: It’s all about perspective: How to interpret an interferogram.