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Diaporama
Actualités
mardi, oct. 01, 2013
A second (and much more violent) geyser-like fumarole or mudvolcano recently appeared off shore near Fumiciono, approx. 100 meters out from the beach in the area where the new port of Rome is being built. It is an underwater vent that produces fountains of upwelling sediment-rich water driven by strong degassing from the sea floor: ... [details]
lundi, août 26, 2013
What appears to be a new fumarole appeared near Rome's International Fiumicino airport Saturday morning. A vent producing small geyser-like fountains of steam, water and mud suddenly opened in the ground near a road crossing near Fiumicino. ... [details]
 

Monte Albano volcan

stratovolcano, caldera 950 m
Italie, 41.75°N / 12.71°E
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Monte Albano livres
Last update: 1 oct. 2013
Style éruptif tipique: Explosive
Eruptions du volcan Monte Albano: unknown
HeureMag. / DepthDistanceLocation
Sun, 30 Dec
Sun, 30 Dec 02:58 UTCM 1.3 / 10.3 km15 km5 km N Colonna (RM)
Sat, 29 Dec
Sat, 29 Dec 23:52 UTCM 3.2 / 10 km14 kmSOUTHERN ITALY
Mon, 24 Dec
Mon, 24 Dec 03:09 UTCM 2.3 / 12 km8 kmSOUTHERN ITALY
Thu, 6 Dec
Thu, 6 Dec 19:13 UTCM 1.2 / 9.8 km21 km3 km SW Cisterna di Latina (LT)
Voir tous
The Monte Albano (Alban Hills) complex immediately SE of Rome contains a large Pleistocene stratovolcano with a 10 x 12 km wide caldera.

Introduction:

The caldera was formed during an eruptive period with six major explosive eruptions producing at least 280 cu km of ejecta between about 560,000 and 350,000 years ago. Subsequent eruptions occurred from a new 5-km-wide central cone and from many phreatomagmatic craters and cones within the Artemisio-Tuscolana caldera and on its outer flanks. The post-caldera eruptions have buried the western side of the caldera rim. The largest of the post-caldera craters is Lake Albano, a 4 x 2.5 km wide maar constructed at the WSW margin of the caldera in 5 stages dating back to about 45,000 years ago. Eruptive products of the 3rd stage were dated at 26,000 yrs Before Present (BP). The 4th and 5th stages were not dated directly, but sediment-core gaps at 16,000 and 7500 yrs BP may correspond to these eruptions (Villa et al., 1999). Reported historical eruptions during the Roman period are uncertain, but seismic swarms of up to two years duration have been recorded since Roman times.
Source: Smithsonian GVP


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