A shallow 6.6-magnitude quake hit off the Solomon Islands on Saturday, the United States Geological Survey said, but there was no Pacific-wide tsunami expected.

The quake struck some 214 kilometres (132 miles) west of the town of Lata but 460 kilometres from the capital Honiara, USGS said.

A 6.9-magnitude earthquake struck off the Solomon Islands on Monday, rocking the capital Honiara, but there was no Pacific-wide tsunami in the tremor-prone region, officials said.

The shallow undersea quake was centered some 214 kilometers (132 miles) west of Honiara, the United States Geological Survey said.

A 7.0-magnitude earthquake struck off the coast of the Solomon Islands on Saturday, the US Geological Survey said, but the threat of a Pacific tsunami in the tremor-prone region was thought to have mostly passed.

The shallow tremor was centered about 78 kilometers (48 miles) west-northwest of Lata in the Solomon Islands and about 583 kilometers from the capital Honiara, it said, after revising it down from an initial estimate of 7.5.

A shallow 6.5 magnitude earthquake struck in the Pacific off the Solomon Islands on Friday, seismologists said, but no tsunami threat was issued and no major damage was expected.

The quake hit 154 kilometers (96 miles) southwest of Dadali and 170 kilometers west of the capital Honiara, according to the US Geological Survey. 

Two strong 6.8-magnitude earthquakes struck off the Solomon Islands early Saturday, U.S. geologists said, but there were no initial reports of damage and no tsunami warnings were issued.

The first quake hit at a depth of 10 kilometers (six miles), 205 kilometers from Kirakira and 448 kilometers from the capital Honiara and the second shallow quake struck just over two hours later about 159 kilometers from Kirakira. 

A strong 6.0-magnitude earthquake rocked the Solomon Islands early Friday, the U.S. Geological Survey said, but there were no initial reports of damage and no tsunami warning was issued. 

The quake hit at a depth of 10 kilometers (six miles), 56 kilometers from the capital Honiara. 

A 6.9-magnitude earthquake struck off the Solomon Islands in the Pacific on Thursday, the U.S. Geological Survey said, but no tsunami warning was issued and no major damage was expected.

The quake hit at a depth of 19 kilometers (11 miles), some 184 kilometers from Lata and 487 kilometers from the capital Honiara. It was followed a smaller 4.9-magnitude aftershock.

A 7.4 magnitude earthquake struck off Papua New Guinea on Tuesday, sending frightened residents fleeing from their homes, but a threatened tsunami passed without incident, seismologists said.

The quake struck 133 kilometers (83 miles) south-southwest of the town of Kokopo in the New Britain region at a depth of 63 kilometers, the U.S. Geological Survey said, and was followed by a 5.9 magnitude aftershock.

The Solomon Islands announced Wednesday that a general election will be held on November 19, in the first vote since the completion of a major peacekeeping operation to end ethnic violence in the Pacific nation.

Top U.S. diplomat John Kerry will travel to Myanmar, Australia and the Solomon Islands later this month, the State Department said Saturday.

The August 8 to 13 trip will kick off in the Myanmar capital of Naypyitaw on August 9 where Kerry will meet government leaders and attend a series of gatherings, including the ASEAN Regional Forum and East Asia Summit ministerial.