theSIGNAL SCIENCE
11 August 2026
"The earth does not argue, is not pathetic, has no arrangements."
Science

Colombia's Worst Quake This Century Kills 111

A magnitude 7.4 earthquake tore through western Colombia on Monday, reducing buildings to rubble and triggering a desperate race to find survivors beneath the debris.

At 4,800 people, San José del Palmar is not a city that usually makes the headlines. But on Monday, August 10, 2026, the small community in Colombia's Chocó region became the epicentre of something enormous — a magnitude 7.4 earthquake that Colombia's Geological Service called the most powerful recorded in the country this century. The shaking was felt across western Colombia and beyond, rippling as far as Ecuador and Panama.

In Cali, the country's third-largest city, rescue teams and ordinary volunteers formed long human chains, passing chunks of concrete hand over hand to reach those still trapped. "Our building has basically been left in ruins," said Álvaro López, who was watching the search while cradling his dog — the kind of detail that makes statistics feel real. At least 111 people were killed, 87 were injured, and around 1,600 buildings were damaged, including 61 that collapsed entirely. Cities from Pereira to Quibdó to Manizales were all struck.

The geography of the disaster makes recovery even harder. Much of Chocó — one of Colombia's poorest regions, buried deep in dense jungle — can only be reached by boat or plane. Roads do not reach everywhere. That means the true toll may not be known for days.

The situation is made more urgent by what is happening next door: Venezuela is still searching rubble from two powerful earthquakes of its own, just weeks earlier.

Photo: Jose Antonio Gallego Vázquez / Unsplash
Rescue workers and residents form a human chain to clear rubble in Cali, Colombia, after Monday's devastating earthquake.
Discuss
  • Why might remote regions like Chocó face greater challenges after a natural disaster?
  • What does it mean for a government to 'declare an emergency', and why is it necessary?
  • Should wealthier nations be obligated to send aid after earthquakes strike poorer countries?
Science

Earth's Climate Broke Records Again in 2025

Here is a number worth sitting with: 425.6 parts per million. That is how much carbon dioxide now floats in every breath of shared atmosphere — 53% more than before industrialisation, and a record high in 2025. It did not stop there. Ocean heat content, global sea levels, methane and nitrous oxide all smashed records too, according to the 36th annual State of the Climate report, compiled by 625 scientists across 60 countries. No El Niño was needed this time. Despite cooler Pacific conditions, 2025 ranked among the three hottest years ever measured. Europe had its warmest year on record, and scientists in Russia, China, South Korea and Argentina each recorded their second-warmest. All five major temperature datasets agree: the last 11 years are the 11 hottest in history.…
  • If every record year feels normal, do we lose our sense of urgency?
We aren't going to leave people alone — they are in our hearts and we are going to tend to people with our full determination.
Abelardo de la Espriella, President of Colombia
Science

SpaceX eyes a bird paradise for rockets

Pecan Island, Louisiana, has fewer inhabitants than a small apartment block. Now SpaceX wants to launch Starship mega-rockets from its shoreline — an area several times larger than Washington DC. The land was previously surrendered by ExxonMobil following lawsuits over pollution and coastal erosion. Critics point out that 40% of all North American waterfowl, including whooping cranes, rely on this strip as a vital stop on their seasonal journeys between North and South America. "Space is cool, but we haven't blasted off high-octane rocketry here before," said local organiser Gabe Giffin.…
  • Should rocket launch sites be built in ecologically sensitive areas?
WORLD · Science
Safety fears as scientists make first viruses designed by AI
GLOBAL · Science
Earth’s molten core suddenly reversed direction — and scientists don’t know why
AMERICAS · Science
Trump administration to pay German firm $1.2bn to halt US wind projects
EUROPE · Science
The sun will vanish over Europe in a rare total solar eclipse: Watch live
theSIGNAL IN THE LAB
1VOCABULARY
epicentrerippling
seismicsmashed recordsmigratory flyway
coastal erosionhuman chains
2GRAMMAR FOCUS
Mixed conditionals — past condition with present result
Use 'If + past perfect' in the condition clause and 'would/wouldn't + infinitive' in the result clause to describe a past situation that still affects the present. For example: 'If it hadn't rained yesterday, the ground would be dry now.'
would be · wouldn't be · would know · wouldn't have · would still be · would face · would not exist
  1. If Colombia built more earthquake-resistant buildings decades ago, fewer structures would be in ruins today.
  2. If roads into Chocó's jungle, rescue teams would be able to reach remote communities right now.
  3. If humans burned fossil fuels on such a massive scale since industrialisation, CO₂ levels would not be at 425.6 parts per million today.
  4. If the last eleven years the hottest ever recorded, scientists would not be so alarmed about the current climate trajectory.
  5. If ExxonMobil surrendered the Louisiana land following pollution lawsuits, SpaceX would not be planning a rocket launch site there today.
  6. If researchers compiled the State of the Climate report for 36 years, we ___ a clear picture of how dramatically conditions have worsened.
3IDIOMS
Define each idiom in your own words. Then write one sentence of your own using one of them.
  1. make the headlines
  2. hand over hand
  3. left in ruins
  4. sit with (a number / an idea)
  5. smash records
4CRITICAL THINKING
The three stories in this edition all involve a tension between human ambition or activity and natural systems — seismic faults, the atmosphere, and migratory flyways. Do you think these tensions are inevitable, or do they reflect specific choices societies have made? Who, in each case, bears the greatest cost?
5CREATIVE · HEADLINES
Write a headline for the Colombia earthquake story in each of the following styles. One line each, no explanation:
  • TABLOID NEWSPAPER
  • LUXURY MAGAZINE
  • ACTIVIST BLOG
6WRITING
The article notes that Venezuela was already searching rubble from its own earthquakes when Colombia was struck. Write a short opinion piece arguing whether international disaster response should be coordinated globally, and what obstacles might prevent that from happening effectively.
7DEGREES OF EXTREMITY
Complete each ladder from mild to strong.
  • damaged
  • felt
  • warm
  • rose
  • concerned
  • difficult to reach
8SPEAKING
  1. How might simultaneous disasters in two neighbouring countries complicate relief efforts?
  2. Can data compiled by hundreds of scientists ever truly change public behaviour?
  3. What responsibilities do private companies like SpaceX have toward local communities?
  4. Does living near a fault line change how people relate to their homes?