An HVO geologist maps the margin of the Kilauea volcano lava flow using GPS near Pahoa, Hawaii in this USGS handout photo

An HVO geologist maps the margin of the Kilauea volcano lava flow using GPS near Pahoa, Hawaii in this USGS handout photo

An HVO geologist maps the margin of the Kilauea volcano lava flow using GPS near Pahoa, Hawaii in this November 1, 2014 USGS handout photo. Hawaii civil defense officials say the lava flow that’s been inching its way down hill towards the village of Pahoa for weeks is still very much active but that it hasn’t advanced in the last 48 hours. REUTERS/USGS/Handout via Reuters (UNITED STATES – Tags: ENVIRONMENT DISASTER) THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS