Healy volcano

Submarine volcano 980 m / 3,215 ft
New Zealand, -35°S / 178.97°E
Current status: normal or dormant (1 out of 5)

Show interactive Map
[hide map] [enlarge]
Typical eruption style: unspecified
Healy volcano eruptions: 1360 ± 75 years

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Fri, 18 Jun 2021 (GMT) (1 earthquake)
18 Jun 2021 20:04:58 GMT
3.4

218 km
45 km (28 mi)
South Pacific Ocean, New Zealand
Sat, 12 Jun 2021 (GMT) (1 earthquake)
12 Jun 2021 18:28:28 GMT
3.5

230 km
48 km (30 mi)
South Pacific Ocean, New Zealand
Fri, 11 Jun 2021 (GMT) (1 earthquake)
11 Jun 5:36 pm (GMT +12) (11 Jun 2021 05:36:20 GMT)
4.4

151 km
27 km (17 mi)
South Pacific Ocean, New Zealand
Sun, 6 Jun 2021 (GMT) (1 earthquake)
6 Jun 2021 19:14:46 GMT
3.5

1 km
45 km (28 mi)
South Pacific Ocean, New Zealand

Background

Healy submarine volcano lies along the South Kermadec Ridge and consists of an elongated edifice with a 3 x 4 km wide caldera at the NE end whose rim reaches to 1150 m below sea level. A smaller caldera lies to the SW, and a satellitic cone, Cotton volcano, rises to 980 below sea level at the SW end of the 15-km-long complex. The flat-lying floor of the larger NE caldera lies 250-400 m below the caldera rim. Rhyodacitic pumice deposits mantle the caldera floor and walls, as well as the flanks of the volcano. Active hydrothermal venting has been observed on the lower part of the southern caldera wall. The roughly 590-year-old sea-rafted Loisels Pumice deposit found in many Holocene beach sequences of North Island, New Zealand and as far away as the Chatham Islands, 650 km east of New Zealand, is chemically and texturally similar to pumices from Healy caldera.
---
Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8
Show more
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

More on VolcanoDiscovery

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.