Volcanos

Global Volcanic Activity - New Activity for the week of 27 March - 2 April 2019

Popocatepetl | Mexico : CENAPRED reported that each day during 26 March-2 April there were 27-200 steam-and-gas emissions from Popocatépetl, some of which contained ash. An explosion at 1923 on 26 March produced an ash plume that rose 3 km above the crater rim and drifted NE, and ejected incandescent fragments 2 km onto the flanks setting fire to pastures on the N and NE flanks. Ashfall was reported in municipalities of Puebla including Santa Cruz, Atlixco (23 km SE), San Pedro, San Andrés Cholula (35 km E), Santa Isabel (45 km ESE), and San Pedro Benito Juárez (10-12 km SE), and in municipalities of Morelos including Hueyapan (17 km SSW) and Tetela del Volcán (20 km SW). An explosion at 0650 on 28 March generated an ash plume that rose 2.5 km and drifted SE, and ejected fragments 1 km onto the flanks. Continuous gas-and-ash emissions were visible between 0538 and 0748. CENAPRED raised the Alert Level to Yellow, Phase Three (middle level on a three-color scale). An ash plume from an explosion at 1948 rose 3 km and drifted SE. Incandescent fragments were ejected 2 km onto the flanks. After that event gas-and-ash plumes rose from the crater until 2010. A period of Strombolian activity began at 0247 on 30 March and lasted for 14 minutes, generating ash plumes that rose 800 m and drifted SE. Incandescent ejecta fell onto the flanks 300 m below the crater rim. During an overflight scientists observed that the diameter of the inner crater had increased to 350 m, and that the crater floor was 250-300 m deep.

Tengger Caldera | Eastern Java (Indonesia) : The Darwin VAAC reported that during 27-28 March ash plumes from Tengger Caldera’s Bromo cone rose to altitudes of 3.4-4 km (11,000-13,000 ft) a.s.l. and drifted W, NW, N, and NE, based on webcam images, satellite data, and notices from PVMBG. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to stay outside of a 1-km radius of the crater.