According to the United States Geological Survey, the quake struck 214 kilometers (132 miles) west of the capital, Honiara.
The Pacific Tsunami Warning Center did not issue any warnings for the Pacific region.
The quake was a relatively shallow 10 kilometers (6 miles), meaning it would be felt more strongly on the surface than if it was deeper. The U.S.G.S recorded a magnitude-5.7 aftershock Monday afternoon about 12 minutes after the initial quake.
The Solomon Island's National Disaster Office said there were no immediate reports of any damage or injuries.
The Solomon Islands, home to 620,000 people, is prone to seismic upheaval due to its location on the Pacific "Ring of Fire," an arc of volcanoes and fault lines encircling the Pacific Basin.
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