Image Source: Agencies

July 30, 2025: A 4.0-magnitude second earthquake hit Tibet on Wednesday, according to a statement from the National Center for Seismology (NCS). As per the NCS, the earthquake occurred at a shallow depth of 10km, making it susceptible to aftershocks.
"EQ of M: 4.0, On: 30/07/2025 11:31:02 IST, Lat: 28.32 N, Long: 87.65 E, Depth: 10 Km, Location: Tibet," the NCS wrote in a post on X. Earlier in the day, an earthquake measuring 4.3 had struck the region.
"EQ of M: 4.3, On: 30/07/2025 06:58:42 IST, Lat: 28.36 N, Long: 87.68 E, Depth: 10 Km, Location: Tibet," the NCS wrote in a post on X. Shallow earthquakes are generally more dangerous than deep earthquakes.

This is due to the shorter distance that the seismic waves from shallow earthquakes have to travel to the surface. As a result, they cause stronger ground shaking, which can cause more damage to structures and more deaths. Seismic activity on the Tibetan Plateau as a result of tectonic plate collisions is well-known. Tibet and Nepal lie on a major geological fault line where the Indian tectonic plate pushes up into the Eurasian plate, and earthquakes are a regular occurrence as a result of it. The Himalayan peaks' heights can be altered by tectonic uplifts that cause seismic activity in the region. Meanwhile, downpour in Tibet early on Wednesday morning triggered flood in rivers flowing in Nepal, prompting authorities to issue warning in three districts.

After the Lhende River swept through infrastructure close to the Nepal-China border, the district of Rasuwa, which is adjacent to the Tibetan side, was hit by a flash flood on July 8 that killed seven people and left over a dozen others still missing. The Trishuli River has been flooded as a result of heavy rainfall earlier this morning in Tibet, raising water levels around Uttar Gaya in Rasuwa and the Trishuli 3B Hub in Kispang. As the amount of water flowing through the Rasuwagadhi area continues to rise, authorities have issued warnings.