OBSERVATÓRIO VULCANOLÓGICO E GEOTÉRMICO DOS AÇORES
O OVGA é um Centro de Ciência que desenvolve atividade de investigação aplicada e de divulgação científica na área da Vulcanologia, da Sismologia e da Geotermia.
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Volcanic ash from Nishino-shima volcano is extending to the north of the volcano (image: @weatherdak/twitter)
The Japan Meteorological Agency (JMA) reported that constant dense dark ash emissions is extending to the north of the volcano across large area of Pacific Ocean. Today at 12:52 local time an ash plume rose 19,356 ft (5,900 m) above the summit. The effusive-explosive eruption of the volcano continues at high levels.
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Glow visible from Fuego volcano (image: @v_ainilli7a/twitter)
INSIVUMEH recorded weak to moderate strombolian-type explosions at regular intervals of 6 to 8 per hour that generated a grey ash plume which reached approx. 14,436-15,092 ft (4,400-4,600 m) altitude. The plume is extending about 15 km to the west and northwest of the volcano.
Scoria is being ejected to an approximate height of 100 to 200 meters above the crater and caused weak to moderate avalanches of...
The sequence of webcam screenshots of pyroclastic flow from Santiaguito volcano (image: INSIVUMEH)
On 29 June at 14:22 local time INSIVUMEH recorded [andesitic] pyroclastic flow that traveled over the west flank of the Caliente dome, as can be seen in the webcam screenshots.
Volcanic ash is extending to the east of the volcano.
Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología volcano activity update 30...
The eggs of Mussaurus, a dinosaur that lived more than 200 million years ago, had soft shells. Traces of a soft shell are visible here as the black egg-shaped halo surrounding the dinosaur embryo. © DIEGO POL
Eggs from the earliest dinosaurs were more like leathery turtle eggs than rigid bird eggs.
Studies of fossilized embryos from two kinds of dinosaurs, one from early in dinosaur history and the other living about 150 million years later, reveal the eggs...
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