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Maroa volcano

Calderas 1156 m / 3,793 ft
New Zealand, -38.42°S / 176.08°E
Current status: normal or dormant (1 out of 5) | Reports
Maroa volcano books
Typical eruption style: unspecified
Maroa volcano eruptions: 180 AD (?) 
TimeMag. / DepthDistanceLocation
Mon, 18 Mar 2019
Mon, 18 Mar 09:17 UTCM 1.2 / 114.7 km21 kmNew Zealand
Mon, 18 Mar 09:17 UTCM 1.9 / 136 km21 kmNew Zealand
Mon, 18 Mar 06:17 UTCM 1.9 / 130.6 km17 kmNew Zealand
Mon, 18 Mar 02:25 UTCM 1.3 / 4 km12 kmNew Zealand
Mon, 18 Mar 01:48 UTCM 1.1 / 6.5 km12 kmNew Zealand
View all recent quakes

Background:

The 16 x 25 km Maroa caldera formed sometime after 230 thousand years ago (ka) in the NE corner of the 30 x 40 km Whakamaru caldera, which is the largest of the Taupo volcanic zone. The Whakamaru caldera partially overlaps with the Taupo caldera on the south and was formed during the eruption of the Whakamaru Group ignimbrites between about 340 and 330 ka. The Maroa caldera was subsequently filled by at least 70 rhyolitic lava domes or flows, mostly erupted along a SW-NE trend. Lesser amounts of basalt were also erupted. The latest dated magmatic eruption took place about 14 ka, when the rhyolitic Puketarata tuff ring and lava domes were formed (Brooker et al., 1993). The Orakeikorako, Ngatamariki, Rotokaua, and Wairakei hydrothermal areas are located within or adjacent to the Whakamaru caldera. Large hydrothermal eruptions have occurred at the Orakeikorako thermal area during the Holocene, the latest immediately prior to the 1800-year-old Taupo eruption.
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Smithsonian / GVP volcano information


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