Latest news with #NationalCenterforSeismology
Hans India
6 hours ago
- Climate
- Hans India
Tibet Earthquakes and Floods: Two Tremors in 5 Hours, Rising River Alert Issued
Tibet was hit by two earthquakes just five hours apart on Wednesday, July 30. The first one measured 4.3 in strength and hit at 6:58 AM. The second one, measuring 4.0, struck at 11:31 AM. Both were shallow, only 10 km deep, which made the shaking stronger and increased the risk of damage and aftershocks, as per the National Center for Seismology. Tibet and Nepal lie on a major earthquake zone. This is where two big plates — the Indian and Eurasian — push against each other. This constant movement often causes earthquakes, making the region unsafe. On the same day, heavy rain made rivers rise in Tibet. The Trishuli River flowing into Nepal overflowed in areas like North Gaya and Trishuli 3B Hub. Officials gave flood alerts. Earlier in July, flash floods in the same region killed seven people. The risk remains high due to rain, quakes, and melting ice.
NDTV
6 hours ago
- Climate
- NDTV
Earthquake Of Magnitude 4 Strikes Tibet, Second In A Day
Tibet: Second earthquake struck Tibet on Wednesday, measuring 4.0 magnitude, a statement by the National Center for Seismology (NCS) said. As per the NCS, the earthquake occurred at a shallow depth of 10km, making it susceptible to aftershocks. In a post on X, the NCS said, "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." 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. For more information Download the BhooKamp App @DrJitendraSingh @OfficeOfDrJS @Ravi_MoES @Dr_Mishra1966 @ndmaindia — National Center for Seismology (@NCS_Earthquake) July 30, 2025 Earlier in the day, an earthquake measuring 4.3 had struck the region. In a post on X, the NCS said, "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." 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. For more information Download the BhooKamp App @DrJitendraSingh @OfficeOfDrJS @Ravi_MoES @Dr_Mishra1966 @ndmaindia — National Center for Seismology (@NCS_Earthquake) July 30, 2025 Shallow earthquakes are generally more dangerous than deep earthquakes. This is because the seismic waves from shallow earthquakes have a shorter distance to travel to the surface, resulting in stronger ground shaking and potentially more damage to structures and greater casualties. The Tibetan Plateau is known for its seismic activity due to tectonic plate collisions. 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 region is seismically active due to tectonic uplifts that can grow strong enough to change the heights of the Himalayas' peaks. Meanwhile, downpour in Tibet early on Wednesday morning triggered flood in rivers flowing in Nepal, prompting authorities to issue warning in three districts. The district of Rasuwa, adjoining the Tibetan side which was hit by a flash flood on July 8 had claimed seven lives with over a dozen still missing, after Lhende River swept infrastructure near Nepal-China border. Heavy rainfall in Tibet earlier this morning has triggered flooding in the Trishuli River, raising water levels in areas around Uttar Gaya in Rasuwa and the Trishuli 3B Hub in Kispang. Authorities have issued warnings as water flow continues to rise in the Rasuwagadhi area. (Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
Time of India
8 hours ago
- Climate
- Time of India
Two earthquakes in Tibet: Above 4.0 magnitude quakes within 5 hours jolt region; heavy rainfall leads to flooding
ANI file photo A second earthquake hit Tibet on Wednesday, registering a magnitude of 4.0, according to a statement from the National Center for Seismology (NCS). The NCS reported that the quake occurred at a shallow depth of 10 km, increasing the likelihood of aftershocks, reported ANI. "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," said NCS through a post on X. The region had already experienced an earthquake of 4.3 magnitude earlier in the day. Shallow earthquakes are more dangerous because their seismic waves have less distance to travel before reaching the surface, causing stronger shaking and more damage, reports ANI. Tibet and Nepal lie along a major geological fault line where the Indian tectonic plate constantly pushes against the Eurasian plate, which ultimately triggers frequent earthquakes in the region and makes the Tibetan plateau a seismically active region. Meanwhile, heavy rainfall in Tibet early Wednesday morning caused rivers flowing into Nepal to swell, prompting authorities to issue flood warnings. The rainfall has led to flooding in the Trishuli River, surging water levels in areas around Uttar Gaya in Rasuwa, and the Trishuli 3B Hub in Kispang. Authorities have also issued alerts as water levels continued to surge in the Rasugawadhi region, reports ANI. Rasuwa region, which borders the Tibetan region, was affected by a flash flood on July 8 that killed seven people, and over a dozen were reported missing after the Lhende River swept away infrastructure near the Nepal-China border. The earthquake in Tibet comes after a massive 8.7-magnitude earthquake jolted Russia's Kamchatka Peninsula, prompting tsunami warnings across a wide stretch of areas, including Alaska, Hawaii, the US West Coast, and China. Russia, Japan, and Hawaii have already experienced tsunami waves following the earthquake.
Hindustan Times
9 hours ago
- Climate
- Hindustan Times
Tibet rocked by second earthquake within 24 hours
Second earthquake struck Tibet on Wednesday, measuring 4.0 magnitude, a statement by the National Center for Seismology (NCS) said. Tibet rocked by twin earthquake today(Unsplash/Representative) As per the NCS, the earthquake occurred at a shallow depth of 10km, making it susceptible to aftershocks. In a post on X, the NCS said, "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." Earlier in the day, an earthquake measuring 4.3 had struck the region. In a post on X, the NCS said, "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." Shallow earthquakes are generally more dangerous than deep earthquakes. This is because the seismic waves from shallow earthquakes have a shorter distance to travel to the surface, resulting in stronger ground shaking and potentially more damage to structures and greater casualties. The Tibetan Plateau is known for its seismic activity due to tectonic plate collisions. 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 region is seismically active due to tectonic uplifts that can grow strong enough to change the heights of the Himalayas' peaks. Meanwhile, downpour in Tibet early on Wednesday morning triggered flood in rivers flowing in Nepal, prompting authorities to issue warning in three districts. The district of Rasuwa, adjoining the Tibetan side which was hit by a flash flood on July 8 had claimed seven lives with over a dozen still missing, after Lhende River swept infrastructure near Nepal-China border. Heavy rainfall in Tibet earlier this morning has triggered flooding in the Trishuli River, raising water levels in areas around Uttar Gaya in Rasuwa and the Trishuli 3B Hub in Kispang. Authorities have issued warnings as water flow continues to rise in the Rasuwagadhi area.
India Today
a day ago
- Science
- India Today
Why the 6.7 magnitude earthquake in Andaman and Nicobar did not trigger a tsunami
A 6.7-magnitude earthquake shook the Andaman and Nicobar Islands on Monday night, raising concerns of a large tsunami. However, no such warning was was triggered by intricate and powerful geological processes deep beneath the seafloor. This region is globally recognised for seismic activity because it lies atop a major tectonic boundary, where the Indian Plate is gradually moving northeast and subducting under the Burma (or Sunda) This convergence is neither simple nor direct: the Indian Plate's movement occurs at an angle (called oblique subduction), introducing both compressive and shearing forces along the subduction of M: 6.7, On: 29/07/2025 03:40:32 IST, Lat: 57.90 S, Long: 157.88 E, Depth: 10 Km, Location: Macquarie Island more information Download the BhooKamp App @DrJitendraSingh @OfficeOfDrJS @Ravi_MoES @Dr_Mishra1966 @ndmaindia National Center for Seismology (@NCS_Earthquake) July 28, 2025WHAT HAPPENED BELOW THE SURFACE?The earthquake's epicenter was relatively shallow, about 10km beneath the Earth's surface. Such shallow quakes, especially in subduction zones like this one, often result in vigorous shaking at the tectonic landscape here is anything but simple; it's a broad zone marked by numerous fault types, including thrust faults where one plate pushes beneath another, and major strike-slip faults where plates slide past each other subduction dominates the area as the Indian Plate becomes squeezed and sheared as it slides both under and past the Burma Plate. This produces immense stress not only at the primary subduction interface but also along sliver faults, large strike-slip systems running parallel to the plate the Andaman-Nicobar region, many sizable earthquakes are directly linked to left-lateral strike-slip movement. When tectonic stress builds up enough to overcome friction along these faults, the rock suddenly shifts, causing an NETWORKS AND RUPTURE DYNAMICSThe Andaman and Nicobar region is crisscrossed by a complex network of faults, including large systems like the Andaman-Nicobar Fault. These accommodate both lateral (sideways) and vertical crustal movements caused by the interplay between the Indian and Burmese this leads to not just single earthquakes but clusters or swarms, as multiple segments rupture or adjust in rapid NO TSUNAMI THIS TIME?Despite its strength, this earthquake didn't generate a significant because the principal movement was horizontal, which displaces less water than vertical contrast, the catastrophic 2004 Indian Ocean earthquake involved much greater vertical movement along a 'megathrust' fault, leading to massive seabed displacement and a devastating lack of major damage can be attributed to the earthquake's remote epicentre, sparse population, primarily horizontal fault movement, and increased regional preparedness and resilient infrastructure since past outcome highlights the importance of both natural factors and human adaptation in reducing earthquake risks in seismically active but isolated regions- Ends
