As no size was specified, went for a large map type. Tried a few gen's with this set, got plenty of volcanoes, and evil/savage areas. You may want to reduce the number of years of generation, else it will take a while (or crash) depending on your machine. Around a hundred may be ideal for an average machine. Certainly saw plenty of volcanoes towards the poles on 3/4 test maps.
[WORLD_GEN]
[TITLE:SOLLISION]
[DIM:257:257]
[EMBARK_POINTS:1504]
[END_YEAR:300]
[BEAST_END_YEAR:300:80]
[REVEAL_ALL_HISTORY:1]
[CULL_HISTORICAL_FIGURES:1]
[ELEVATION:1:400:1600:1600]
[RAINFALL:0:100:400:400]
[TEMPERATURE:20:80:400:400]
[DRAINAGE:0:100:400:400]
[VOLCANISM:0:100:400:400]
[SAVAGERY:0:100:400:400]
[ELEVATION_FREQUENCY:1:1:1:1:1:1]
[RAIN_FREQUENCY:1:1:1:1:1:1]
[DRAINAGE_FREQUENCY:1:1:1:1:1:1]
[TEMPERATURE_FREQUENCY:3:3:1:1:1:1]
[SAVAGERY_FREQUENCY:3:1:1:1:1:3]
[VOLCANISM_FREQUENCY:4:1:0:0:0:4]
[POLE:NORTH_AND_OR_SOUTH]
[MINERAL_SCARCITY:2000]
[MEGABEAST_CAP:100]
[SEMIMEGABEAST_CAP:300]
[TITAN_NUMBER:100]
[TITAN_ATTACK_TRIGGER:80:0:100000]
[DEMON_NUMBER:1000]
[NIGHT_TROLL_NUMBER:25]
[BOGEYMAN_NUMBER:25]
[VAMPIRE_NUMBER:1000]
[WEREBEAST_NUMBER:25]
[SECRET_NUMBER:1000]
[REGIONAL_INTERACTION_NUMBER:1000]
[DISTURBANCE_INTERACTION_NUMBER:1000]
[EVIL_CLOUD_NUMBER:1000]
[EVIL_RAIN_NUMBER:1000]
[GENERATE_DIVINE_MATERIALS:1]
[GOOD_SQ_COUNTS:100:1000:2000]
[EVIL_SQ_COUNTS:250:2500:5000]
[PEAK_NUMBER_MIN:50]
[PARTIAL_OCEAN_EDGE_MIN:2]
[COMPLETE_OCEAN_EDGE_MIN:0]
[VOLCANO_MIN:200]
[REGION_COUNTS:SWAMP:0:0:0]
[REGION_COUNTS:DESERT:0:0:0]
[REGION_COUNTS:FOREST:0:0:0]
[REGION_COUNTS:MOUNTAINS:0:0:0]
[REGION_COUNTS:OCEAN:0:0:0]
[REGION_COUNTS:GLACIER:0:0:0]
[REGION_COUNTS:TUNDRA:0:0:0]
[REGION_COUNTS:GRASSLAND:0:0:0]
[REGION_COUNTS:HILLS:0:0:0]
[EROSION_CYCLE_COUNT:200]
[RIVER_MINS:400:400]
[PERIODICALLY_ERODE_EXTREMES:1]
[OROGRAPHIC_PRECIPITATION:1]
[SUBREGION_MAX:5000]
[CAVERN_LAYER_COUNT:3]
[CAVERN_LAYER_OPENNESS_MIN:0]
[CAVERN_LAYER_OPENNESS_MAX:100]
[CAVERN_LAYER_PASSAGE_DENSITY_MIN:0]
[CAVERN_LAYER_PASSAGE_DENSITY_MAX:100]
[CAVERN_LAYER_WATER_MIN:0]
[CAVERN_LAYER_WATER_MAX:100]
[HAVE_BOTTOM_LAYER_1:1]
[HAVE_BOTTOM_LAYER_2:1]
[LEVELS_ABOVE_GROUND:15]
[LEVELS_ABOVE_LAYER_1:5]
[LEVELS_ABOVE_LAYER_2:1]
[LEVELS_ABOVE_LAYER_3:1]
[LEVELS_ABOVE_LAYER_4:1]
[LEVELS_ABOVE_LAYER_5:2]
[LEVELS_AT_BOTTOM:1]
[CAVE_MIN_SIZE:25]
[CAVE_MAX_SIZE:100]
[MOUNTAIN_CAVE_MIN:150]
[NON_MOUNTAIN_CAVE_MIN:250]
[ALL_CAVES_VISIBLE:0]
[SHOW_EMBARK_TUNNEL:2]
[TOTAL_CIV_NUMBER:60]
[TOTAL_CIV_POPULATION:25000]
[SITE_CAP:2000]
[PLAYABLE_CIVILIZATION_REQUIRED:1]
[ELEVATION_RANGES:0:0:0]
[RAIN_RANGES:0:0:0]
[DRAINAGE_RANGES:0:0:0]
[SAVAGERY_RANGES:0:0:0]
[VOLCANISM_RANGES:0:0:0]