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The following information (Reference hastag) was received and entered into the system: #sms011920s Manam volcano news and eruption update

Category: Aviation Alert

Notification type: Emergency and Disaster

Location: Bogia District

Date and time: Thursday Jan 24, 2019 04:15 AM | BY: VN

On the above date and time references the following incident took place: Manam volcano, stratovolcano 1807 m / 5,928 ft. Papua New Guinea, (-4.08°S / 145.04°E)

Explosive activity continues. Volcanic Ash Advisory Centre (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 14000 ft. (4300 m) altitude or flight level 140.

Background:

Manam island is the submerged top of a large stratovolcano. It is circular and 10 km in diameter. While there is vegetation on its lower slopes are vegetated, the upper slopes are bare due to its frequent eruptions. 4 large valley radiate from the summit area down to the lower slopes. They are spaced 90 degrees apart and known as “avalanche valleys”, because pyroclastic flows are usually channeled inside one or several of these valleys.

Manam has 2 active summit craters, remnants of an old caldera visible at an elevation of 900 m, and 5 small flank craters located near the island’s shoreline on the northern, southern and western sides.

Most historic eruptions, recorded since 1616, originated from the southern crater and erupting many pyroclastic flows into the SW avalanche valley.

Manam volcano located 13 km off the northern coast of New Guinea near Bogia town is one of Papua New Guinea’s most active volcanoes. It has one of the longest records of historic eruptions in the SE Pacific region. The larger eruptions of Manam produce pyroclastic flows and sometimes lava flows. Both have repeatedly reached the coast and affected populated areas.

Information was received from: Reliable Source

Submitted by: Madwatch Alerts

Contact number: 75997793

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