Pago and the Witori Caldera, PNG

Active Pago cone in Witori caldera from the N in Sept 2002 during the 2002 eruptive sequence.  Directional blast left vegetation alone close to the crater rim while mowing trees down to the right of the image.  Photo courtesy USGS – VDAP via Smithsonian GVP

Marianas 2 – The Marianas Volcanic Arc Part 2 of 2

Shuttle photo image of Agrihan (Agrigan) Volcano taken Apr 2003. Image courtesy NASA via Wiki

Marianas 1 – The Marianas Volcanic Arc Part 1 of 2

Izu – Bonin – Mariana Arc system.  Image courtesy Calvert, et al Apr 2011

Lassen Volcanic Center, California

Skyline above timberline of the Lassen dome field.  Major domes visible.  Cinder Cone is in the foreground, the most recent feature.  Lassen Peak in the center background.  Other recent domes labeled.  Image courtesy Lassen Volcanic Center, USGS

Mount Martin and Alagogshak Volcanoes, Katmai, Alaska

Summit of Mount Martin showing active fumaroles and small acidic lake.  Image courtesy SR Wood, US NPS, Katmai

Are Exceptionally Violent Volcanic Eruptions More Common Than We Think? Part 2 of 2

Landsat image of Lake Taupo on New Zealand North Island.  Image courtesy NASA Landsat, 2005 via Wiki

Are Exceptionally Violent Volcanic Eruptions More Common Than We Think? Part 1 of 2

Follow-on Hunga-Tonga eruption on Jan 16.  Image courtesy Tonga Geological Services via teleSUR, Jan 17

Ksudach Caldera System, Kamchatka

Ksudach volcano with two crater lakes. Breached Shtyubel volcano is in the northern portion of the main caldera. Note denuded flanks via the 1907 eruption. Volcanic structure at the One O’clock position is unnamed. Screen capture from Google Maps.

Volcanism along the Northern EPR 9.8° – 17° N

Location of RISE Project area at the Northern East Pacific Rise. Image courtesy Wiki

Easter Island, Chile

Satellite image of Easter Island. Three main shields are clearly visible. Rani Kau is lower left. Terevaka is upper center. Poike is far right. Most recent lava flows are clearly visible in the center of the island. Collapse caldera in Rano Kau is clearly visible. Image courtesy ESA, 2019