An earthquake of magnitude 3.4 on the Richter scale struck the lower Subansiri district of Arunachal Pradesh on Thursday afternoon, according to the National Centre for Seismology.
As per the latest reports from the NCS, the tremor occurred at 15:45:42 pm IST. Further details are awaited. The earthquake occurred at a depth of 100km.
NCS statement
In a post on X, the NCS revealed further details regarding the origin of the earthquake.”EQ of M: 3.4, On: 25/12/2025 15:45:42 IST, Lat: 27.53 N, Long: 93.89 E, Depth: 5 Km, Location: Lower Subansiri, Arunachal Pradesh” the centre posted on social media platform X.
Recent quakes
Earlier an earthquake of magnitude 3.8 struck Tibet on late Wednesday, according to a statement from the Earthquake of magnitude 3.8 strikes Tibet (NCS).
The earthquake occurred at a depth of 90km.In a post on X, the NCS said, “EQ of M: 3.8, On: 17/12/2025 21:34:38 IST, Lat: 30.39 N, Long: 98.50 E, Depth: 90 Km, Location: Tibet.”
An earthquake of magnitude 3.4 struck Leh, Ladakh, late at night on Tuesday, according to the National Centre for Seismology (NCS). According to details shared by the NCS on X, the earthquake occurred at 11:25 pm IST, at a shallow depth of approximately 10 kilometres.
Arunachal’s vulnerability to natural disasters
Arunachal lies at the junction of the Himalayan arc and the Indo-Burma ranges. This region absorbs enormous geological stress as tectonic plates collide, making it prone to sudden, high-energy earthquakes.
The Northeast has witnessed some of India’s largest recorded earthquakes, including the 1950 Assam–Tibet earthquake (Magnitude ~8.6), which caused massive landslides and river changes. The new map suggests similar energy is still locked in the region.
India’s updated earthquake map released earlier this year has also thrown up concerning findings for the Himalayan region, with Arunachal Pradesh emerging as one of the most seismically vulnerable parts of the country.
Scientists and disaster managers say the map reinforces long-standing warnings that the Northeast sits on an active collision zone, where the Indian plate is still pushing under the Eurasian plate.
(With inputs from agencies)