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

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.

Apaneca Range, El Salvador

Apaneca Range from the S. Cerro de Apeneca on the left, Las Ninfas – Laguna Verde complex in the center. Cuyanausul, Cerro de la Rana, Cerro Aguila, Cerro los Naranjos to the right. The Concepcion de Ataco Caldera is on the other side of the range, obscured by the line of volcanic cones. Image courtesy Lee Siebert, 1999 via Smithsonian GVP

Hokkaido 5: The Tokachi Volcanic Group, Japan

Phreatic eruption at Tokachi Dec 1988. Magmatic explosion, incandescent blocks, and a small pyroclastic surge down the N flank of the volcano. Image courtesy Japan Meteorological Agency1988, via Smithsonian GVP

The Atka, Korovin, Kliuchef Volcanic Complex, Aleutians, Alaska

Greater Atka Volcano complex with the caldera, Korovin and Kliuchef labeled. Image courtesy Lu and Dzurisin, 2014, via Smithsonian GVP

Ushishur, Kuril Islands, Russia

Airborne photo of Ushishur volcano, Yankich Island, central Kurils. Caldera is clearly visible with 4 post-caldera domes. Photo taken looking generally N. External hydrothermal plume visible to the E at the 0300 position. Neighboring Reponkich Island visible to the NE. Image courtesy Eugene Kaspersky on Twitter, Oct 2019

Volcanoes of Samoa – Part 2 of 2

Google Maps screen capture of Tutuila Island. Multiple volcanoes are clearly visible. Collapsed and heavily eroded Pago volcano is barely visible. Note the lack of barrier reef surrounding the island, which should indicate how rapid the island is subsiding back into the ocean.

Lolobau Island, PNG

Lolobau Island from the air. Intra-caldera Lake Namor clearly visible. Southern and eastern caldera scarps clearly visible. Most recent Lolobau Mountain visible in the center of the photo with clouds to its south. Image courtesy Brendan McCormick Kilbride, Twitter, May 2019

The Towada Caldera, Honshu, Japan

Towada volcano, northern Honshu.  Clearly visible is the main caldera, the newer Nakanoumi caldera which truncated the Goshikiiwa stratovolcano in the caldera, and the most recent Ogurayama dome.  Image generally looking west.  Image courtesy Yoshihiro Ishizuka via Smithsonian GVP

The Cotacachi – Cuicocha Volcanic Complex, Ecuador

Cuicocha caldera with visible domes. Eroded Cotacachi volcano lies to the north. Image taken looking north. Image courtesy Patricio Ramon, 2003 via Smithsonian GVP