6

St. Andrew Strait - Papua New Guinea
St. Catherine - Grenada
St. Helens - Washington         Extra
St. Vincent - St. Vincent and the Grenadines
St. Michael - Alaska
St. Paul - Indian Ocean (France)
St. Paul Island - Alaska
Saba - West Indies (Netherlands)         Extra
Sabalan - Iran
Sabancaya - Peru         Extra         Extra
Sabatini - Italy
Sabinyo - Rwanda
Sabober - Ethiopia
Sacabaya - Bolivia
Saddle Butte Volcanic Field - Oregon
Sahand - Iran
Sairecabur - Chile/Bolivia
Sajama - Bolivia
Sakar - Papua New Guinea
Sakura-jima - Japan         Extra
Salak - Indonesia
Salton Buttes - California

Mullet Island
Obsidian Butte
Rock Hill

San Agustin - Bolivia
Sanbe - Japan
San Borja Volcanic Field - Mexico
San Carlos - Equatorial Guinea
San Cristobal - Nicaragua         Extra
San Cristobal - Galapagos Islands         Extra
San Diego Volcanic Field - El Salvador
Sand Mountain Field - Oregon
San Felipe Volcanic Field - New Mexico
San Felix - Pacific Ocean (Chile)
Sanford - Alaska         Extra         Extra
San Francisco Mountain - Arizona
San Francisco Volcanic Field - Arizona
Sanganguey - Mexico
Sangay - Ecuador         Extra
Sangeang Api - Indonesia
San Joaquin - Equatorial Guinea
San Jorge - Azores
San Jose - Chile
San Martin - Mexico
San Miguel - El Salvador         Extra
San Miguel Island - Azores
San Pablo - Chile
San Pedro - Chile         Extra
San Pedro - Guatemala
San Pedro-Pellado - Chlie
San Quintin Volcanic Field - Mexico
San Salvador - El Salvador Extra
Santa Ana - El Salvador         Extra         Extra
Santa Clara - Nicaragua
Santa Clara Volcanic Field - Utah
Santa Cruz - Galapagos Islands         Extra
Santa Fe - Galapagos Islands
Santa Isabel - Colombia
Santa Isabel - Equatorial Guinea
Santa Isabel - Bolivia
Santa Maria - Costa Rica
Santa Maria - Guatemala         Extra         Extra
Santiago - Galapagos Islands         Extra
Santiago Volcanic Field - Guatemala
Santiaguito - Guatemala
Santo Antao - Cape Verde         Extra
Santo Luzia - Cape Verde
Santorini - Greece         Extra
Santo Tomas - Philippines
Santo Tomas - Guatemala
San Vicente - Cape Verde
San Vicente - El Salvador         Extra
Sanukah-yama - Japan
Sao Tome - Sao Tome and Principe
Sao Vicente - Cape Verde
Sarigan - Mariana Islands         Extra
Sarik-Gajah - Indonesia
Sarychev Peak - Russia
Satah Mountain Volcanic Field- Canada
Saunders - S. Sandwich Islands
Savai'i - Western Samoa
Savo - Solomon Islands
Sawtooth Mountain - Oregon
Schank - Australia
Schmidt - Russia
Seal Nunataks Group - Antarctica
Sedankinsky - Russia
Segererua Plateau - Kenya
Seguam - Alaska         Extra
Segula - Alaska         Extra
Sekincau Belirang - Indonesia
Semeru - Indonesia         Extra
Semisopochnoi - Alaska         Extra
Sempu - Indonesia
Serdan-Oriental - Mexico
Sergief - Alaska
Serua - Indonesia
Sessagara - Papua New Guinea
Sete Cidades - Azores         Extra
Seulawah Agam - Indonesia
Severny - Russia
Shala Lake (O'a) - Ethiopia         Extra
Sharat Kovakab Volcanic Field - Syria
Shasta - California         Extra         Extra
Shastina - California
Sheveluch - Russia
Shiga - Japan
Shikaribetsu Group - Japan
Shikine-jima - Japan
Shikotsu - Japan         Extra
Shin-dake - Japan
Shinmoe-dake - Japan
Shiretoko-Iwo-Zan - Japan         Extra
Shiribetsu - Japan
Shirinki - Russia
Shishaldin - Alaska         Extra
Shishel - Russia
Shiveluch - Russia
Shoshone Lava Field - Idaho
Showa-Shinzan - Japan
Sibayak - Indonesia
Sibualbuali - Indonesia
Sierra Nevada - Chile/Argentina
Silali - Kenya
Silay - Philippines
Silver Peak Caldera - Nevada
Silverthrone - Canada
Simbo - Solomon Islands
Simcoe Mountains Volcanic Field - Washington

Lincoln Plateau
Signal Peak

Sinabung - Indonesia
Sinarka - Russia
Singuil - El Salvador
Singu Plateau - Burma
Siple - Antarctica
Sirung - Indonesia
Sisi Butte - Oregon
Sitgreaves Mountain - Arizona
Slamet - Indonesia
Smirnov - Russia
Smith Rock - Japan
Snaefellsjokull - Iceland
Snake River Plain Volcanics - Idaho

Big Southern Butte
Craters of the Moon
King's Bowl
Menan Buttes
Pillar Butte
Split Butte
Wapi

Snegovoy - Russia
Snezhniy - Russia
Snowy - Alaska
Soboliny - Russia
Soche - Ecuador
Society Islands - Tahiti
Socompa - Chile/Argentina         Extra
Socorro - Mexico
Sodore - Ethiopia
Solboliny - Russia
Sollipulli - Chile         Extra
Somma - Italy
Soputan - Indonesia
Soretimeat - Vanuatu
Sorikmarapi - Indonesia
Sorkale - Ethiopia/Eritrea
Sosso - Chad
Sotara - Colombia
Soufriere - Guadeloupe         Extra
Soufriere - St. Vincent and the Grenadines         Extra
Soufriere Hills - Montserrat         Extra         Extra
South Cinder Peak - Oregon
Southern Sikhote-Alin Volcanic Field - Russia
South Island - Kenya         Extra
South Sister - Oregon
South Tuya - Canada
Spectrum Range - Canada
SP Mountain - Arizona
Spurr - Alaska         Extra         Extra
Squaw Ridge Lava Field - Oregon
Srednii - Russia