1866day.year
Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers.
The 1866 Oaks explosion in Yorkshire became England's worst mining disaster, killing 361 miners and rescuers.
On December 12, 1866, a devastating explosion tore through the Oaks Colliery in Barnsley, Yorkshire.
Ignited by an accumulation of firedamp, the blast claimed the lives of 361 miners and would-be rescuers.
Witnesses described tremors that rattled nearby villages, followed by billowing clouds of dust and debris.
The tragedy prompted public outcry over mine safety standards and the need for improved ventilation systems.
Subsequent inquiries led to stricter regulations in the mining industry to prevent similar catastrophes.
A memorial now stands near the former colliery site, honoring the lives lost in the worst mining accident in England.
1866
Oaks explosion
1939day.year
HMS Duchess sinks after a collision with HMS Barham off the coast of Scotland with the loss of 124 men.
The British destroyer HMS Duchess collides with HMS Barham off Scotland, sinking with the loss of 124 sailors.
On December 12, 1939, during wartime night exercises in the Moray Firth, HMS Duchess accidentally rammed her sister ship, HMS Barham.
The collision tore open the Duchess’s hull, causing rapid flooding and loss of power.
Despite rescue efforts by Barham and other vessels, 124 crew members were unable to escape.
Survivors were pulled from the cold waters by destroyer escorts using lifeboats and rafts.
A naval board of inquiry investigated, leading to improved safety protocols for night operations.
The tragedy underscored the hazards of fleet maneuvers under blackout conditions in World War II.
1939
HMS Duchess
HMS Barham
1979day.year
The 8.2 Mw Tumaco earthquake shakes Colombia and Ecuador with a maximum Mercalli intensity of IX (Violent), killing 300–600, and generating a large tsunami.
A powerful magnitude 8.2 earthquake struck the coastal regions of Colombia and Ecuador on December 12, 1979, causing widespread destruction and triggering a deadly tsunami. Between 300 and 600 lives were lost as communities near the epicenter reeled from the violent tremors.
On December 12, 1979 the coastlines of Colombia and Ecuador were violently shaken by an 8.2 magnitude earthquake. The quake reached a maximum Mercalli intensity of IX (Violent), toppling buildings and cracking roads across a vast area. A massive tsunami followed the seismic event, further devastating coastal towns and villages. Casualty estimates range from 300 to 600 people, with thousands more injured and displaced. Rescue and relief operations faced significant challenges due to damaged infrastructure and remote locations. The disaster prompted improvements in regional earthquake preparedness and early warning systems. Decades later, the Tumaco earthquake remains one of the most powerful and destructive seismic events to hit the northern Andes.
1979
Tumaco earthquake
Colombia
Ecuador
Mercalli intensity
1985day.year
Arrow Air Flight 1285R, a McDonnell Douglas DC-8, crashes after takeoff in Gander, Newfoundland, killing all 256 people on board, including 236 members of the United States Army's 101st Airborne Division.
On December 12, 1985, Arrow Air Flight 1285R, carrying U.S. troops from Egypt, crashed shortly after takeoff from Gander, Newfoundland, killing all 256 people aboard. The tragedy stands as one of the deadliest aviation disasters involving U.S. military personnel.
Arrow Air Flight 1285R, a McDonnell Douglas DC-8 chartered by the United States Army, departed Cairo on December 11, 1985 and transited through Gander, Newfoundland for refueling. Shortly after takeoff on December 12, the aircraft stalled at low altitude and plunged back into the runway area. All 256 passengers and crew perished, including 236 soldiers of the 101st Airborne Division returning home from peacekeeping duties. Investigators explored multiple factors, including ice contamination and mechanical failure, but the exact cause remains disputed. The disaster prompted changes to de-icing procedures and flight safety protocols for military charters. Families and communities across the U.S. mourned the loss of a generation of troops, solidifying the crash's place in aviation history.
1985
Arrow Air Flight 1285R
McDonnell Douglas DC-8
Gander, Newfoundland
101st Airborne Division
1988day.year
The Clapham Junction rail crash kills thirty-five and injures hundreds after two collisions of three commuter trains—one of the worst train crashes in the United Kingdom.
On December 12, 1988, a signal failure led to two collisions at Clapham Junction station in London, killing 35 people and injuring hundreds. It remains one of the worst train accidents in British history.
Shortly before 8:10 pm on December 12, 1988, a wiring fault at Clapham Junction station disrupted signaling systems, allowing three commuter trains to enter conflicting routes. The first collision involved a crowded commuter train, followed seconds later by a collision with another train carrying families returning from Gatwick Airport. The crash killed 35 people and injured over 100, some critically. The subsequent inquiry exposed systemic issues in railway maintenance, signal engineering, and management oversight. Recommendations included comprehensive signal redesign, improved staff training, and enhanced safety protocols. The tragedy led British Rail to invest heavily in modernizing its signaling infrastructure and enforcing stricter maintenance standards. Clapham Junction remains a stark reminder of the importance of robust safety measures in public transportation.
1988
Clapham Junction rail crash
1999day.year
A magnitude 7.3 earthquake hits the Philippines's main island of Luzon, killing six people, injuring 40, and causing power outages that affected the capital Manila.
On December 12, 1999, a magnitude 7.3 earthquake struck the main Philippine island of Luzon, causing widespread damage around Manila. Six people were killed, and dozens injured as buildings swayed and power supplies failed.
The powerful 7.3 magnitude quake shook Luzon on December 12, 1999, with its epicenter near the town of Rizal, Bulacan province. Strong tremors were felt across Metro Manila, toppling walls, cracking roads, and disrupting utilities. Six lives were lost directly from collapsing structures and falling debris, while around 40 people sustained injuries. The earthquake caused widespread power outages, cutting electricity to Manila and surrounding areas for days. Emergency services and the Philippine National Red Cross mounted swift relief operations, clearing rubble and providing medical aid. The event prompted a review of building codes and disaster preparedness plans in the country's capital. Residents and officials recognized the need for better seismic-resistant construction in a region prone to tectonic activity.
1999
magnitude 7.3 earthquake
Luzon
Manila