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On This Day | August 25

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2017
Hurricane Harvey makes landfall in Texas

Hurricane Harvey was a devastating Category 4 hurricane that made landfall on Texas and Louisiana in August 2017, causing catastrophic flooding and more than 100 deaths. It is tied with 2005's Hurricane Katrina as the costliest tropical cyclone on record, inflicting $125 billion (2017 USD) in damage, primarily from catastrophic rainfall-triggered flooding in the Houston metropolitan area and Southeast Texas; this made the storm the costliest natural disaster recorded in Texas at the time.

2005
Hurricane Katrina makes landfall in Florida

Hurricane Katrina was a devastating Category 5 Atlantic hurricane that resulted in 1,392 fatalities and caused damage estimated between $97.4 billion to $145.5 billion in late August 2005, particularly in the city of New Orleans and its surrounding areas. At the time, it was the costliest tropical cyclone on record, tied now with Hurricane Harvey of 2017. Katrina was the twelfth tropical cyclone, the fifth hurricane, and the third major hurricane of the 2005 Atlantic hurricane season. It was also the fourth-most intense Atlantic hurricane on record to make landfall in the contiguous United States.

1970
Tachu Naito died

Tachu Naito was a Japanese architect, engineer, and professor. He was a father of earthquake-proof design and built many broadcasting and observation towers, including the Tokyo Tower.

1933
1933 Diexi earthquake

The 1933 Diexi earthquake occurred in Diexi, Mao County, Szechwan, Republic of China on August 25 with a moment magnitude of 7.3 and a maximum Mercalli intensity of X (Extreme). With up to 9,300 killed, this was the deadliest earthquake in 1933. This earthquake destroyed the town of Diexi and surrounding villages, and caused many landslides. The old town of Diexi was submerged in landslide dam-created Diexi Lake.

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Layered seabed geology changes how subsea cables should be protected

Jul, 07, 2026 | News

The weakest part of a subsea cable route is not always the cable itself. Often, it is the ground mod...

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Norwegian tunnelling methods could reshape the Peak District tunnel case

Jul, 14, 2026 | News

A new proposal has revived the long-running idea of a road tunnel beneath the Peak District, aiming...

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Second giant TBM begins work on India’s first undersea rail tunnel

Jul, 19, 2026 | News

A second large-diameter tunnel boring machine has started excavation on the Mumbai-Ahmedabad High-Sp...

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BGS depth-to-bedrock model strengthens early ground risk screening

Jul, 15, 2026 | News

The British Geological Survey has released Version 8 of its Superficial Deposit Thickness Model, giv...

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UPLIFT aims to make deep geothermal energy safer and more predictable

Jul, 21, 2026 | News

A new Horizon Europe project called UPLIFT is targeting one of the most difficult questions in renew...

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Geotechnical Earthquake Engineering - A Berkeley Virtual Short Course Series

Jul, 28, 2026 | Event

UC Berkeley faculty does it again! The "Geotechnical Earthquake Engineering" series is offered from...