A strong undersea earthquake has struck off Indonesia's main island of Java near the capital, Jakarta, but officials say there is no risk of a tsunami.

The U.S. Geological Survey says the epicenter of the 7.5 magnitude quake was about 110 kilometers east of Jakarta. It struck shortly after midnight local time (1700 UTC) at a depth of more than 280 kilometers.

The Pacific Tsunami Warning Center says the quake was too deep to generate a large tsunami wave.

There were no immediate reports of injuries or significant damage, but the quake triggered panic in many parts of the island. Residents of Jakarta say the temblor shook buildings there for more than a minute.

In December 2004, a massive undersea earthquake and tsunami killed more than 160,000 people in Indonesia's westernmost Aceh province. Many thousands more were killed in other Indian Ocean nations.

Indonesia is the world's largest archipelago. It is prone to seismic upheaval due to its location on the so-called Pacific Ring of Fire, an arc of volcanos and fault lines encircling the Pacific Basin.

Some information for this report was provided by AP and Reuters.