Jan Mayen (North Atlantic Ocean, Jan Mayen Island, Norway) (Event 89-70)
Card 1078-1079 (04 January 1971) Satellite images show September 1970 eruption
Hekla (Iceland) (Event 43-70)
Card 1093 (19 January 1971) Review of May-July 1970 eruption
Suwanose-jima (Ryukyu Islands, Japan) (Event 53-70)
Card 1095 (20 January 1971) Explosions on 13 and 20-22 December 1970
Sakura-jima (Kyushu, Japan) (Event 60-70)
Card 1095 (20 January 1971) More December explosions; 19 total during 1970
Akita-Komaga-take (Honshu, Japan) (Event 85-70)
Card 1095 (20 January 1971) Explosions at the summit crater and lava flows from a new cinder cone
Cerro Negro (Nicaragua) (Event 15-71)
Card 1118 (08 February 1971) Eruptions on 3-4 February send ash to an altitude of 20,000 feet
Card 1126 (11 February 1971) New vent producing lava and tephra; ashfall 80 km away
Card 1128 (16 February 1971) Ashfall covers an area of 300 square kilometers
Card 1138 (26 February 1971) Description on early eruptive activity
Nyiragongo (DR Congo) (Event 21-71)
Card 1127 (11 February 1971) Red glow seen on 24 December 1970
Erta Ale (Ethiopia, northeastern Africa) (Event 22-71)
Card 1132-1133 (18 February 1971) Incandescent lava lakes clearly visible in both craters
Sakura-jima (Kyushu, Japan) (Event 60-70)
Card 1135 (23 February 1971) Explosion on 11 January reaches 3 km
Akita-Komaga-take (Honshu, Japan) (Event 85-70)
Card 1135 (23 February 1971) Explosions decline rapidly and stop in late January
Kuwae (Shepherd Island, Vanuatu) (Event 23-71)
Card 1137 (24 February 1971) Explosive eruption on 22 February builds island
Kuwae (Shepherd Island, Vanuatu) (Event 23-71)
Card 1142 (01 March 1971) Eruption ends quickly; felt seismicity
Sakura-jima (Kyushu, Japan) (Event 60-70)
Card 1156 (22 March 1971) Explosions continue in February
Jan Mayen (North Atlantic Ocean, Jan Mayen Island, Norway) (Event 89-70)
Card 1160 (29 March 1971) Smoke observed above the volcano on 16 and 21 March
Nyamuragira (DR Congo) (Event 31-71)
Card 1161 (29 March 1971) Eruption started on 24 March from the S flank
Nyiragongo (DR Congo) (Event 21-71)
Card 1163 (30 March 1971) Lava lake remains active and rising; recent seismicity
Nyamuragira (DR Congo) (Event 31-71)
Card 1164 (01 April 1971) Glow from lava flows seen on second night of the eruption
Card 1187 (30 April 1971) Tephra-fall up to 60 km away damages crops
Etna (Italy) (Event 33-71)
Card 1167 (06 April 1971) Lava flows from fissure approach observatory
Card 1169 (08 April 1971) Activity from two radial fractures; three new cones built
Card 1170 (12 April 1971) Very active lava flows almost surround observatory
Card 1171 (12 April 1971) About 150,000 m2 were covered by noon on 6 April
Card 1173-1174 (19 April 1971) Lava covers 1 km2 by 17 April; observatory and cableway damaged
Card 1183 (30 April 1971) Three new craters formed; lava flows advancing on the S flanks
Card 1184 (30 April 1971) Observatory surrounded, but not destroyed, by lava flows as of 25 April
Card 1185-1186 (30 April 1971) Two new explosive vents on the E fissure; cone growth continues
Stromboli (Italy) (Event 34-71)
Card 1168 (06 April 1971) Lava flow on 3 April reaches the sea
Kilauea (Hawaii, USA) (Event 14-70)
Card 1179 (23 April 1971) Divers observe underwater lava flow
Ruapehu (North Island, New Zealand) (Event 36-71)
Card 1180 (26 April 1971) Tremor and lake color changes precede steam explosions
Erta Ale (Ethiopia, northeastern Africa) (Event 22-71)
Card 1192-1193 (03 May 1971) Fountaining seen from both active lava lakes
Fernandina (Galapagos Islands, Ecuador) (Event 42-71)
Card 1194 (04 May 1971) Three recent earthquakes; white puffs from cinder cones
Etna (Italy) (Event 33-71)
Card 1195 (06 May 1971) Activity continuing in early May at high levels
Card 1198 (10 May 1971) Eruption stops at some locations, but opens new vents and emits more lava flows
Card 1200-1201 (13 May 1971) Details of lava-flow activity during early May
Card 1202 (13 May 1971) Two additional eruptive vents open on 11-12 May
Card 1208 (17 May 1971) Lava flow from 11-12 May centers cuts highway
Card 1211 (18 May 1971) New fissure on the S flank emits lapilli and fumes
Card 1213 (19 May 1971) Farm houses destroyed by lava flow; strong explosions on 18 May
Card 1215 (21 May 1971) Summary of activity during 4-12 May
Stromboli (Italy) (Event 34-71)
Card 1196 (06 May 1971) Two explosions and a small lava flow on 1 May
Azufral (Colombia) (Event 43-71)
Card 1197 (07 May 1971) More than 60 tremors felt since 26 April
Ruapehu (North Island, New Zealand) (Event 36-71)
Card 1206 (17 May 1971) Eruption on 8 May drenches scientists at the summit in hot water and mud
Sakura-jima (Kyushu, Japan) (Event 60-70)
Card 1226 (01 June 1971) Four moderate explosions in April
Akita-Komaga-take (Honshu, Japan) (Event 85-70)
Card 1227 (01 June 1971) No eruptive activity since 25 January
Etna (Italy) (Event 33-71)
Card 1229 (03 June 1971) Crater enlargements; corrections to previous reports
Kuwae (Shepherd Island, Vanuatu) (Event 23-71)
Card 1247 (02 July 1971) Report of island visit 10 days after 22 February eruption
Fernandina (Galapagos Islands, Ecuador) (Event 42-71)
Card 1249 (07 July 1971) No significant changes to caldera from recent earthquake swarm
Wolf (Galapagos Islands, Ecuador) (Event 42-71)
Card 1249 (07 July 1971) Aerial reconnaissance shows caldera unchanged
Darwin (Galapagos Islands, Ecuador) (Event 42-71)
Card 1249 (07 July 1971) Aerial reconnaissance shows caldera unchanged
White Island (New Zealand) (Event 73-71)
Card 1266 (28 July 1971) Small eruption on 19 July forms new crater and drops ash and blocks on the island
Card 1267 (28 July 1971) Eruption diminished by 20 July, but intermittend large explosions continuing
Cerro Hudson (southern Chile) (Event 80-71)
Card 1280 (16 August 1971) Eruption causes property damage and cattle evacuation
Card 1282 (17 August 1971) Ashfall causes significant crop and cattle damage
Card 1283 (23 August 1971) Eruption plumes to 20,000 feet; five victims
Card 1284 (25 August 1971) Potential deaths of fifty families
Card 1286 (30 August 1971) Activity diminishes after 26 August
Kilauea (Hawaii, USA) (Event 81-71)
Card 1281 (16 August 1971) Summit eruption from four fissures with lava fountaining
Fuego (Guatemala) (Event 85-71)
Card 1290 (17 September 1971) Sudden violent ash eruption on 14 September
Card 1295 (23 September 1971) Significant ash and lava emission; deaths reported
Card 1296 (27 September 1971) Review of activity; pyroclastic flows and ashfall
Etna (Italy) (Event 33-71)
Card 1294 (23 September 1971) Activity starts again after 100 days of quiescence
Tinakula (Solomon Islands) (Event 87-71)