Pacaya (Guatemala) (Event 03-70)
Card 0843 (08 January 1970) Elevated activity in late 1969; strong eruption on 7 January
Kavachi (Solomon Islands) (Event 134-69)
Card 0846 (12 January 1970) Renewed water spouts in late December 1969
Ulawun (New Britain Island, Papua New Guinea) (Event 06-70)
Card 0850 (16 January 1970) Major eruption with heavy lava flow; few details available
Card 0856 (27 January 1970) High level of activity continuing; constant ash emission
Cerro Negro (Nicaragua) (Event 53-68)
Card 0851 (19 January 1970) Mild gas and ash explosions in December
Arenal (Costa Rica) (Event 20-68)
Card 0852 (19 January 1970) Description of lava flow on 6 January
Lokon-Empung (Sulawesi, Indonesia) (Event 09-70)
Card 0857 (29 January 1970) Eruption on 27 November 1969 ejects thick, dark cloud; activity continued through late December
Kavachi (Solomon Islands) (Event 134-69)
Card 0858 (02 February 1970) Cone observed 50 feet above the surface; glowing ash cloud
Bayonnaise Rocks (Izu Islands, Japan) (Event 10-70)
Card 0859 (04 February 1970) Numerous explosions and discolored water on 29 January
Card 0866 (13 February 1970) Larger eruption on 3 February
Kilauea (Hawaii, USA) (Event 14-70)
Card 0867 (13 February 1970) Summit deflation followed by moderate lava emission
Falcon Island (Tonga Islands, Pacific Ocean) (Event 16-70)
Card 0870 (16 February 1970) Large area of water discoloration
Campi Flegrei (Italy) (Event 20-70)
Card 0877 (04 March 1970) Ten new fissures and inflation in the Campi Flegrei
Card 0878 (05 March 1970) Additional investigations and measurements being made
Card 0879 (09 March 1970) Inaccurate press reports cause voluntary evacuation of 20,000 people
Bayonnaise Rocks (Izu Islands, Japan) (Event 10-70)
Card 0880 (09 March 1970) Explosions in January and February detected by hydrophones
Bezymianny (Kamchatka Peninsula, Russia) (Event 135-69)
Card 0899 (31 March 1970) High seismicity since 17 February
Kavachi (Solomon Islands) (Event 134-69)
Card 0901 (01 April 1970) Eruption ends by 7 February; island erodes below ocean surface
Card 0921-0921a (28 April 1970) Summary of events from 28 October 1969 through 3 March 1970
San Miguel (El Salvador) (Event 32-70)
Card 0902 (03 April 1970) Renewed activity on 30 March
Card 0904 (07 April 1970) Ashfall extends 10 km from the summit; crater visit
Kilauea (Hawaii, USA) (Event 14-70)
Card 0908 (10 April 1970) Lava fills Aloi Crater and overflows S toward the coast
Campi Flegrei (Italy) (Event 20-70)
Card 0915 (22 April 1970) Investigations show no evidence of recent fissures, uplift, or seismicity
Card 0916 (22 April 1970) Fumarole temperatures and composition unchanged from previous measurements
Malinao (Luzon, Philippines) (Event 35-70)
Card 0919 (27 April 1970) Reports of tremors and rumblings
Masaya (Nicaragua) (Event 38-70)
Card 0924 (30 April 1970) Minor explosions and lava emission from central vent on old lava lake
Aso (Kyushu, Japan) (Event 39-70)
Card 0925 (30 April 1970) Ash eruptions from a new vent at Crater 1 of the Naka-dake cone
Bayonnaise Rocks (Izu Islands, Japan) (Event 10-70)
Card 0927 (30 April 1970) Eruption on 23 April sends water and smoke 200 m high
Hekla (Iceland) (Event 43-70)
Card 0933 (07 May 1970) Eruption from fracture system; tephra fall to the N
Card 0934 (07 May 1970) Inspection flight reveals 13 vents and fissures; dense ash cloud to 29,000 feet
Card 0936 (11 May 1970) Present activity mainly lava with some pumice production
Card 0940 (14 May 1970) Summary of fissure locations and activity; high amounts of fluorine
Card 0944 (22 May 1970) New fissure on 20 May has 20 lava fountains
Bayonnaise Rocks (Izu Islands, Japan) (Event 10-70)
Card 0938 (14 May 1970) Detailed observations of activity from fishing boats and observation flights
Campi Flegrei (Italy) (Event 20-70)
Card 0939 (14 May 1970) Slow uplift detected in small area; no other unusual phenomena
Karymsky (Kamchatka Peninsula, Russia) (Event 47-70)
Card 0943 (22 May 1970) Series of powerful eruptions form new crater on 12 May
Karymsky (Kamchatka Peninsula, Russia) (Event 47-70)
Card 0950 (01 June 1970) Details of 12 May eruption; ash explosions continuing every 2-3 hours
Suwanose-jima (Ryukyu Islands, Japan) (Event 53-70)
Card 0958 (10 June 1970) Summit-crater explosions on 28 May
Bayonnaise Rocks (Izu Islands, Japan) (Event 10-70)
Card 0972 (15 July 1970) Explosion bubbles and floating pumice on 18 June
Sakura-jima (Kyushu, Japan) (Event 60-70)
Card 0973 (15 July 1970) Lava mass observed in early May; explosion on 12 June
Hekla (Iceland) (Event 43-70)