Clickable Map of Izu Shoto - Izu Islands

Each Island name links to image and discription of the island
at Global Volcanism Program
(Shikinejima - no link, Sofu-iwa links to Sofu-iwa page at this site. See more links below.)

Detailed Underwater Volcano Map Clickable in Japanese

by Hydrographic and Oceanographic Department
Japan Coast Guard

Deep Seafloor Image Gallery (in frame)

at Deep Seafloor Image Database
at
JAMSTEC(Japan Agency for Marine-Earth Science and Technology)

A bit too deep for scuba divers, but there are fishes, shrimps, crabs, shell fishes on several hundreds meters deep seafloor.

For quick refreshing course

The Underwater World (in frame)

at Ocean Talk at Naval Meteorology and Oceanography Command

 

Plate Tectonics Theory

Izu Islands are volcanic islands on subduction zone on the margin of Philippine plate that borders Pacific plate. Here are some of links about trenches, plates and plate tectonic theory.

Tectonic plates in the world (simple map)

at This Dynamic Earth at USCG Geographical Survey

Plate Tectonics

at The Southern California Integrated GPS Network

The Rocky History of an Idea and Mechanism

at Geology: Plate Tectonics at UCMP University of California Museum of Paleontology

This Dynamic Planet ( Interactive map, zoom in, etc.)
World Map of Volcanoes, Earthquakes, Impact Craters, and Plate Tectonics
by Smithsonian, USGS and US Naval Research Laboratory

If you feel that plate tectonics theory does not explain the process fully, here's a link I came across. Questions raised might interest you.

Oceanic Crust at Shock Dynamics

Problems with Plate Tectonics by David Pratt

 

Posted July 8, 2006