Sunday, March 16 2025

Author: Rosario Q. Iannone

Sentinel-2 captures the disaster after Sulawesi earthquake in Indonesia

An earthquake of magnitude 7.3 (Richter scale) was recorded at 18.02 local time in the waters of Indonesia, off the island of Sulawesi, last Friday 28 September 2018. According to data from the Italian Institute of Geophysics and Volcanology (Ingv) the earthquake had hypocentre at about 20 km of depth. The earthquake triggered a tsunami

Lake Natron

One of the most mysterious places in the world is the Lake Natron (02025‘S 36000‘E), located along the branch of the Rift Valley, known also as Gregory Rift, in the northern Tanzania. The lake is characterized by a wide stretches of water, which will highlight in red during the seasonal flowering of algae. In fact,

California Fires in Sentinel-2 images

During this week, part of California has been devastating by a high number of fires. In particular the area burnt down is the Ventura County, extending the south part of the state. The RGB image below has been captured on 05 December 2017 by Sentinel-2B and shows the area affected by the fires. In this

Wildfires in Val di Susa

Wildfires were raging Val di Susa during the last three days. Val di Susa is an alpine valley located in the western part of Piemonte, region of north Italy, west of Turin and bordering France. The state of emergency is due to the very long periods of drought and the wildfires were also fed by

Volcanoes seen by Sentinel-2

On Earth, 500-600 Volcanoes exist. A volcano is a relief of the terrestrial crust (submarine or air) formed by the ejection and stacking material from the rise of magma in the form of lava ash. Volcanic activity can take several forms; each of them depends on the quantity of gases present in the magma and

The River delta

Herodotus used for the first time the Greek letter “delta” to indicate the area with a particular triangular shape were the different branches of the Nile river deposits its load in the Mediterranean Sea. The extension of a delta may reach a surface of some hundred kilometers and a delta can be defined as the

Walking into the Sea

  The Earth and the Moon behave as single system, rotating about a common center of mass. The main consequence of the eccentric motion about the Earth-Moon center of mass is the movement of the largest water bodies creating a high and low tide. This phenomenon is particularly visible in the northern coast of the

Proba-V: the eye of Quebec

The Proba-V 333m image of 03 March 2015 shows the Manicouagan crater, located in Manicouagan Region of Quebec, Canada. This lake represents one of the largest craters, roughly 100km, originating by an impact of a 5km diameter meteorite about 214 million years ago during the Triassic Period. In the middle of the lake, there is

Italy imaged by Proba-V

A false-colour image of Italy, as seen in infrared by ESA’s Proba-V minisatellite, with vegetation shown in red, mountain area in red–brown and built-up areas as green. Proba-V is a miniaturized ESA satellite (launched on 7 May 2013) smaller than a cubic meter with the objective to map land cover and vegetation growth across the