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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Notícia OVGA 05-11-2021
The reconstructed skull of "Leti," a young Homo naledi. The skull was found inside a tiny passageway deep within a South African cave, and probably dates back more than 241,000 years. (Image credit: Wits University)
Deep within South Africa's Rising Star cave system, in a dark passageway barely 6 inches (15 centimeters) wide, scientists have discovered the fragmented skull of a Homo naledi child they're calling "...
Notícia OVGA 22-10-2021
Dezenas de navios surgiram depois de uma erupção subaquática em agosto, na ilha onde foi travada a sangrenta batalha de Iwo Jima (imagem: ANN News).
A atividade do vulcão subaquático Fukutoku-Okanoba, localizado a cinco quilómetros da ilha japonesa de Iōtō, anteriormente conhecida como Iwo Jima, descobriu mais de uma dúzia de navios afundados durante a Segunda Guerra Mundial.
A erup...
Notícia OVGA 20-10-2021
Cartoon showing the different activity at the vents of La Palma at the moment (image: Volcanes de Canarias)
Volcanes de Canarias (link to twitter) published a simplified sketch to illustrate the current arrangements of vents at the eruption site, to help to better understand how the activity is different at each vent. Ultimately, this is a function of how gasses, present as bubbles inside the magma as well as still in solution in...
Notícia OVGA 19-10-2021
Activity at the vent of the eruption on La Palma this afternoon (image: Canarias TV live stream)
The eruption continues with no significant changes. At the vent, a lava flow is being erupted and intense ash emissions create an eruption column rising to approx. 4000 m.
Although the activity has been much less noisy recently, the continuous gas and ash emissions, often in combination with little wind has been causing lots...