Lolobau volcano

caldera 858 m / 2,815 ft
New Britain Island, Papua New Guinea, -4.92°S / 151.16°E
Current status: normal or dormant (1 out of 5)

Lolobau volcano forms an island 6.5 km off the coast of New Britain. The island measures 13.7 km long (east-west) and 9.7 km wide (north-south) and is formed by a 6 km wide caldera containing the small lake Naoi, and a younger stratovolcano, Mt Lolobau.
Several vents within the caldera lies along an E-W-trending line on the eastern flank of Mount Lolobau and have been active during historical time. The latest eruptions took place during the early-20th century from vents on Lolobau's east flank inside the caldera. Fumarolic activity decreased between 1937 and 1950.

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Typical eruption style: explosive
Lolobau volcano eruptions: 1911-12 (Sili), 1908?, 1904-05 (Sili Malo or summit?), 1100 ± 30 years (Hulu)

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Tue, 8 Jun 2021 (GMT) (1 earthquake)
8 Jun 8:56 pm (GMT +10) (8 Jun 2021 10:56:37 GMT)
5.7

131 km
30 km (19 mi)
147 km southwest of Kokopo, East New Britain Province, Papua New Guinea

Background

The young cones inside the caldera include Giwu Peak, Sili (Siwi), Malo, Tiwongo and Tobal. The small 30 m high Hulu lava dome caps Mount Lolobau, which has a 0.8 x 1.1 km summit crater breached to the NE.


See also: Sentinel hub | Landsat 8
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