14) { $gdate = $gdate2; } if($ghr < 3) { $gdate = "$yester"."12"; } echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; } ?> Global Sulfur Dioxide Monitoring Home Page "; echo ""; } ?>
NASA Logo, National Aeronautics and Space Administration

Atmospheric Chemistry and Dynamics Laboratory (Code 614)

Global Sulfur Dioxide Monitoring Home Page


Each week, Smithsonian's Global Volcanism Program publishes a report of new volcanic activity.

The SO2 data collected by AURA/OMI and Suomi NPP/OMPS for the new activity this week are shown below.


Week of 07 - 13 May 2025


Central_America - Poas & Santiaguito: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Colombia - Ruiz & Sangay: OMI   NPP-OMPS   TROPOMI   N20-OMPS
DRCongo - Nyamulagira & Nyiragongo: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Halmahera - Dukono: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Hawaii - Kilauea: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Indonesia - Lewotobi & lewotolok: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Italy - Etna: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Java - Krakatau, Merapi, Raung & Semeru: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Kamchatka - Klyuchevsky, Mutnovsky & Sheveluch: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Mexico - El Chichon & Popocatepetl: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Northern Chile - Lascar: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Papau New Guinea - Bagana & Langila: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Philippines - Kanlaon & Taal: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Sumatra - Marapi: OMI   NPP-OMPS   TROPOMI   N20-OMPS
Vanuatu - Aoba & Yasur: OMI   NPP-OMPS   TROPOMI   N20-OMPS

Summary of Preliminary Tonnage estimates