Reporting Observations

Are you experiencing ashfall? We are interested in both YES and NO answers!

Reports of ashfall are important to us. We use your observations to assess the timing, character and size of an eruption plume as well as to help to provide accurate warning products. Additionally, reports of NO ashfall during an eruption with expected ashfall are also important to us. Thank you for your participation in volcano science!

To report ashfall please visit Is Ash Falling?