Popocatépetl volcano (Mexico): flight observation to measure summit crater Mon, 8 Mar 2021, 09:49 09:49 AM | BY: MARTIN Aerial view of the summit crater at Popocatépetl volcano on 5 March (image: CENAPRED) Aerial view of the summit crater at Popocatépetl volcano on 5 March (image: CENAPRED) Vulcanian-type explosion from Popocatépetl volcano yesterday (image: CENAPRED) On 5 March CENAPRED in collaboration with UNAM (Universidad Nacional Autónoma de México) did a flight observation to measure a dimensions of the summit crater. The measurements revealed a diameter of 360 to 390 meters and an approx. depth of 150 to 180 meters fully covered by tephra deposits. In addition, no lava dome is occurring in the inner summit crater.