From 1907 to 1924, a lava lake within Halema'uma'u Crater at the summit of Kilaunea was active almost continuously.
It erupted on December 21, 1919. It was a 221 day-long eruption ended in mid-August 1920.
On May 10, 1924, Kilauea had its first explosive eruption and peaked on May 18 with multiple explosion and a cloud of ash, dust more than 21000 ft high
On April, 1926, an eruption began at the summit of Mauna Loa, but fissured soon extend 3 miles down the volcano's SW Rift zone. It sent a massive lava flow rapidly advance tower the sea.
There were earthquake with magnitude ranged from 6.0 to 6.5 in area around Hualalai volcano. These earthquakes were caused by an intrusion of magma beneath the volcano.
On November 21, 1935, an eruption began in Mauma Loa's summit caldera and migrated down its NE Rift Zone. On November 27, another vent erupted, sending the flow of lava toward resident area. An attempt to divert the flow by using bomb was made.
Eruption occurred on April 26, 1942 and end on May 9.
On June 1, a fissure 1.5 miles long erupted on Mana Loa's SW rift zone. A lava flow crossed the high way and reach the ocean.
A 6.9 earthquake struck near the west coast of the Island of Hawaii.
After 18 years of inactivity, Kilauea erupted again.
On January 12, a lava fountain erupted north of Kapoho. Most of Kapoho was destroyed.
Eruption followed by draining of the lava lake. This eruption was an on-and-off eruption in a pattern, thus it could be safely observed.
The eruption began on May 24. Lava flows covers 17.6 square miles and add 230 acres of new land to the Island of Hawaii.
Lava fountain erupted from fissures for only 6 hours.
The eruption focused at a single vent, create a fountain lava. By 1986 it reached its maximum height by 835 ft.
It began on March 25 when a fissure open on the volcano summit caldera then migrated to upper NE rift zone. Since then, it has not yet erupted again.
The ongoing eruption in 1983 advanced in to the SE coast of the island of Hawaii. 100 homes was buried in 50 feet of lava.