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Nejapa-Miraflores volcano

Updated: Nov 27, 2022 03:33 GMT -
fissure vents 360 m / 1,181 ft
Nicaragua, 12.12°N / -86.32°W
Current status: normal or dormant (1 out of 5)

Nejapa-Miraflores volcano is an alignment of fissure vents, maars and cinder cones extending from Lake Managua until the western part of Managua city.
About 40 eruptions have occurred from this system during the past 30,000 years, and the most recent one produced Asososca maar about 1250 years ago.

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Typical eruption style: effusive
Nejapa-Miraflores volcano eruptions: 1060 ± 100 years

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Monday, November 21, 2022 GMT (1 quake)
Nov 20, 2022 8:29 pm (GMT -6) (Nov 21, 2022 02:29 GMT)
2.6

25 km
33 km (21 mi)
41 km southwest of Managua, Nicaragua
Saturday, November 19, 2022 GMT (1 quake)
Nov 19, 2022 9:42 am (GMT -6) (Nov 19, 2022 15:42 GMT)
2.6

86 km
34 km (21 mi)
16 km west of San Rafael del Sur, Departamento de Managua, Nicaragua
Friday, November 18, 2022 GMT (1 quake)
Nov 18, 2022 6:17 am (GMT -6) (Nov 18, 2022 12:17 GMT)
2.3

108 km
35 km (22 mi)
Departamento de Leon, 42 km west of Managua, Nicaragua
Wednesday, November 16, 2022 GMT (1 quake)
Nov 15, 2022 10:49 pm (GMT -6) (Nov 16, 2022 04:49 GMT)
3.5

139 km
34 km (21 mi)
12 km south of Masaya, Nicaragua

Background

from Smithsonian / GVP volcano information:
The N-S-trending Nejapa-Miraflores alignment, located near the western margin of the Nicaraguan graben, cuts through the western part of Nicaragua's capital city, Managua.
This alignment, which has erupted tholeiitic basaltic rocks similar to those from mid-ocean ridges, marks the right-lateral offset of the Nicaraguan volcanic chain. A series of pit craters and fissure vents extends into Lake Managua and is continuous with the volcanic vents on the Chiltepe peninsula.
An area of maars and tuff cones perpendicular to the N-S trend of the lineament forms the scalloped shoreline of Lake Managua. Laguna Tiscapa crater is located several kilometers to the east near the central part of the city of Managua. The elongated Nejapa and Ticoma pit craters are surrounded by small basaltic cinder cones and tuff cones.


See also: Sentinel hub | Landsat 8 | NASA FIRMS

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