Maderas volcan

stratovolcan 1394 m / 4,573 ft

Condition actuelle: normal / en sommeil (1 sur 5)

Maderas volcano is a basaltic to dacitic stratovolcano on the SE end of Ometepe island in Lake Nicaragua. It has a a 800 m wide summit crater which contains the small lake Laguna de Maderas at the bottom.
Maderas is still active, but the latest activity dates back more than 3000 years ago and there are no confirmed eruptions in historical time.

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Style éruptif tipique: explosive
Eruptions du volcan Maderas: more than 3000 years ago

HeureMag. / ProfondeurDistance/Lieu
mercredi, 15. septembre 2021 10:23 GMT (1 séisme)
15 sept. 2021 04:23 (GMT -6) (15. sept. 2021 10:23 GMT)
2.5

5 km
26 km (16 mi)
22 km au nord-est de Nicaragua, Departamento de Rivas, Nicaragua
samedi, 11. septembre 2021 10:55 GMT (2 séismes)
11 sept. 2021 04:55 (GMT -6) (11. sept. 2021 10:55 GMT)
2.2

21 km
41 km (25 mi)
10.4 km à l'est de La Cruz, Provincia de Guanacaste, Costa Rica
10 sept. 2021 19:17 (GMT -6) (11. sept. 2021 01:17 GMT)
2.0

6 km
43 km (27 mi)
29 km au sud de Nicaragua, Departamento de Rivas, Nicaragua

Introduction

Volcán Maderas is cut by numerous faults and grabens, the largest of which is a NW-SE-oriented graben that cuts the summit and has at least 140 m of vertical displacement. The summit crater is located at the western side of the central graben.
The SW side of the volcano has been affected by large-scale slumping. There are many flank cones on the lower NE flank down to Lake Nicaragua.

1996 lahar and fatalities
A mud flow in September 1996 killed 6 persons in a village on the east flank, but there was no eruption at the volcano. The lahar was caused by heavy rainfall.

See also: Sentinel hub | Landsat 8
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