WELLINGTON, New Zealand (AP) -- Another powerful earthquake has struck the Solomon Islands, the second strong temblor of the day to hit the South Pacific country.
The magnitude-7.7 quake struck at 11:36 p.m. local time Sunday, with an epicenter 328 kilometers (204 miles) southeast of Honiara, the capital, and a depth of 20 kilometers (12 miles), according to the U.S. Geological Survey.
On Sunday morning, a magnitude-7.6 quake in the same area triggered large waves in the Solomon Islands.
There were no immediate reports of injuries or damage from either quake.
Following the first earthquake, the Pacific Tsunami Warning Center canceled a tsunami warning after issuing an alert for some Pacific islands.
The Solomon Islands was already reeling from flash floods that struck April 3, killing 23 people and leaving 9,000 homeless.
A tsunami warning has been issued for some Pacific islands following a powerful magnitude-7.6 earthquake near the Solomon Islands.
The United States Geological Service said the quake struck around 7:14 a.m. local time Sunday. Its epicenter was 323 kilometers (200 miles) southeast of Honiara, the Solomons capital, and its depth was 29.3 kilometers (18.2 miles).
The Pacific Tsunami Warning Center has issued a warning for the Solomon Islands, Vanuatu and Papua New Guinea. The center says it's not known if the quake generated a tsunami but it was powerful enough to trigger one.
There were no immediate reports of injuries or damage from the temblor.
The Solomon Islands lies on the "Ring of Fire" -- an arc of earthquake and volcanic activity that stretches around the Pacific Rim.