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Lava fountains erupting from fissure on upper northeast rift zone o...
March 25, 1984

Lava fountains erupting from fissure on upper northERZ of Mauna Loa...

Pohaku Hanalei cinder-spatter cone (upper left) is located about 3.2 km (2 mi) NE from the north edge of the caldera rim. Eruption rates were as high as 2.9 million m3 per hour during the first 6 hours of the eruption, then diminished to about 0.5 million m3 per hour for the next 12 days. Sizable pahoehoe flows formed only during the first day of the eruption and within a

Red hot lava erupts vertically in the air from a cone of black, hardened lava
September 6, 1983

Low fountain of lava from Pu'u 'O'o, Kilauea Volcano, 1983

Low fountain, approximately 50 meters high, from Pu'u 'O'o on Hawai'i Island's Kilauea Volcano (viewed from the north). Lava issuing from the breach in the northeast rim of the crater produced an 'a'a flow that extended more than 4 kilometers. Eruption episode 8.

Red hot lava fountaining 100 meters into the air from a cone of hardened, black lava
September 6, 1983

100-meter lava fountain, Kilauea Volcano, 1983

Pu'u 'O'o fountain approximately 100 meters high during eruption episode 8 on Hawai'i Island's Kilauea Volcano. Dark clots of spatter land near the base of the fountain, contributing to the growth of the cone. Less dense cinder, visible in the upper right, is carried downwind of the cone.

egg-shaped ball of red-hot lava with a blackened crust sitting on a bed of grass
July 23, 1983

Lava ball, Kilauea Volcano, 1983

Accretionary lava ball comes to rest on the grass after rolling off the top of an 'a'a flow in Royal Gardens subdivision on Hawai'i Island's Kilauea Volcano. Accretionary lava balls form as viscous lava is molded around a core of already-soldified lava.

Flat-topped cinder cone with red-hot lava splattering out of the top and cascading down the sides.
June 29, 1983

Pu'u 'O'o cinder-and-spatter cone, Kilauea Volcano, 1983

View at dusk of the young Pu'u 'O'o cinder-and-spatter cone, with fountain 40 meters high, on Hawai'i Island's Kilauea Volcano (episode 5).

A stream of red hot lava arcs into the air and splatters down on cooler, black lava flows
February 25, 1983

Arching fountain of lava, Kilauea Volcano, 1983

Arching fountain of lava approximately 10 meters high issuing from the western end of the 0740 vents, a series of spatter cones 170 meters long, south of Pu'u Kahaualea on Hawai'i Island's Kilauea Volcano (episode 2). Episodes 2 and 3 were characterized by spatter and cinder cones, such as Pu'u Halulu, which was 60 meters high by episode 3.

Photo showing a dozen narrow, blackened tree trunks with a crusted layer of black lava clinging to the bottom of each tree
January 7, 1983

Forest of lava trees, Kilauea Volcano, 1983

Forest of lava trees resulting from eruption of a 1-km-line of vents east of Pu'u Kahaulea on Hawai'i Island's Kilauea Volcano. The bulbous top of each lava tree marks the high stand of the lava flow as it spread through the trees. As the fissure eruption waned, the flow continued to spread laterally; its surface subsided, leaving pillars of lava that had chilled against

Lava fountains erupting from fissures, Kīlauea Volcano, Hawai‘i...
January 5, 1983

Lava fountains erupting from fissures, Kīlauea, Hawai‘i

Lava fountains erupt from fissures during the first week of the Pu‘u ‘Ō‘ō eruption south of Pu‘u Kahaualea, approximately 2.4 km (1.5 miles) northeast of where subsequent eruptions built the Pu‘u ‘Ō‘ō cone. The early fissures cut through old forested lava flows in a remote section of Kīlauea's east rift zone. Note single 'ohi'a tree burning in front of the fissures.

Submerged coconut grove at Halapē after 1975 earthquake, Kīlauea Vo...
December 4, 1975

Submerged coconut grove at Halapē after 1975 quake, Kīlauea

A M 7.7 earthquake on November 29, 1975, was located beneath the south flank of Kīlauea. Along the south coast of Kīlauea at Halapē, 30 km southwest of the earthquake, the ground subsided by as much as 3.5 m (11.5 ft), which left a grove of coconut palms standing in water about 1.2 m (4 ft) deep and the new shoreline about 100 to 150 m (110 to 164 yd) inland from its

Earthquake-damaged road, Hawai‘i Volcanoes National Park, Kīlauea V...
November 29, 1975

Earthquake-damaged road, Hawai‘i Volcanoes National Park, Kīlauea

Ground cracks along Crater Rim Drive in Hawai‘i Volcanoes National Park caused by the M 7.7 earthquake on November 25, 1975. The cracks resulted from slumping of the ground toward the rim of Kīlauea Crater, the edge of which is left of the guardrails.

Mauna Loa 1975 eruption. Lava fountains up to 20 m (65 ft) high eru...
July 6, 1975

Mauna Loa 1975 eruption. Lava fountains up to 20 m (65 ft) high eru...

Mauna Loa 1975 eruption. Lava fountains up to 20 m (65 ft) high erupted from fissures on the north flank of the volcano early Sunday morning, July 6, 1975.

South flank of Kīlauea Volcano consists of several large scarps for...
June 24, 1971

South flank of Kīlauea consists of several large scarps formed by r...

Seaward sliding of Kīlauea's south flank over many thousands of years has resulted in large ground displacements along shallow faults that break the surface, as shown by the cliffs ("pali" in Hawaiian) seen here. Most of the movement along the faults occur during sudden slip that cause large earthquakes. Scientists recently discovered that the south flank also moves

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April 23, 1993

The missing visitor to Hawai`i Volcanoes National Park serves as a tragic reminder that active volcanoes can be unpredictable and dangerous, however passive and approachable their eruptions. Kīlauea is no exception. 

April 16, 1993

The 10-year-long eruption on Kīlauea's East Rift Zone continued this past week. Lava is erupting from the episode 51 and 53 vents on the southwest side of the Pu`u `O`o cone, but is being carried towards the coast entirely within underground lava tubes as far as the top of the pali. 

April 9, 1993

The eruption near Pu`u `O`o on Kīlauea's East Rift Zone continues, with lava entering the ocean both east and west of Kamoamoa and at Lae`apuki.

April 2, 1993

In historical times, two tsunamis occurred during the first week of April. The first of these occurred on April 2, 1868; it resulted from the great earthquake that took place that day near Pahala.

March 26, 1993

Lava continues to flow from two active vents on the south and southwest flanks of the Pu`u `O`o cinder cone on Kīlauea's East Rift Zone. These vents have been simultaneously active since the eruption restarted on February 20, following a 10-day period of repose and a four-day-long period, when only the episode 51 ventwas active. 

25 years since last Mauna Loa eruption...
March 19, 1993

This Thursday marks the ninth anniversary of the beginning of the last eruption of Mauna Loa Volcano, following a nine-year period of quiescence.

March 12, 1993

The eruption on Kīlauea's East Rift Zone continues, with little change from last week. Lava from the episode 51 and 53 vents, both located on the southwest flank of the Pu`u `O`o cone, flowed through lava tubes to the coast.

Lava flows from two Pu'u 'O'o vents...
March 5, 1993

The eruption on Kīlauea's East Rift Zone continued through the week. Two vents were active, both located on the flanks of the 770-foot-high Pu`u `O`o cone.

February 26, 1993

The 10-year-long eruption at Kīlauea Volcano started up again during the morning of February 16, after a period of inactivity lasting about 10 days. The eruption began at the episode 51 vents on the west flank of Pu`u `O`o, with only small volumes of pasty lava flowing through the pre-existing tubes. 

Pu`u `O`o eruption is volcano's 50th episode...
February 21, 1993

On Monday, Feb. 17, at about 7:30 p.m., lava began erupting from a fissure on the southwest flank of Pu`u `O`o.

February 19, 1993

In February 1877, an unusual eruption occurred on Mauna Loa Volcano. Part of the eruption was submarine, and the eruptive fissure was neither at the summit nor along one of Mauna Loa's well-defined rift zones. 

February 12, 1993

An intense earthquake swarm occurred beneath the upper to middle East Rift Zone of Kīlauea Volcano starting at 11:36 p.m. on Sunday, February 7. At the peak of activity, the seismic network operated by the Hawaiian Volcano Observatory was recording nearly 400 earthquakes per hour.