Hydrau
@hydrau.bsky.social
We no longer fear what we understand.
I break down natural disasters — what causes them, what to do, and how to stay safe.
I break down natural disasters — what causes them, what to do, and how to stay safe.
“We thought it was like a normal flood. We didn’t know it would be like a tsunami.”
— Mayor Alfred Romualdez, Tacloban City.
— Mayor Alfred Romualdez, Tacloban City.
November 11, 2025 at 1:00 PM
“We thought it was like a normal flood. We didn’t know it would be like a tsunami.”
— Mayor Alfred Romualdez, Tacloban City.
— Mayor Alfred Romualdez, Tacloban City.
I can’t imagine the fear,
If Hurricane Patricia were forming today, in our hypermediatisation era
If Hurricane Patricia were forming today, in our hypermediatisation era
October 23, 2025 at 12:30 PM
I can’t imagine the fear,
If Hurricane Patricia were forming today, in our hypermediatisation era
If Hurricane Patricia were forming today, in our hypermediatisation era
The Cyclone Seasons Around The World.
October 19, 2025 at 9:30 PM
The Cyclone Seasons Around The World.
Dear Helene
I was fortunate never to meet you.
Yet, I came to know you through the images and the stories of those who did.
I was fortunate never to meet you.
Yet, I came to know you through the images and the stories of those who did.
September 25, 2025 at 1:00 PM
Dear Helene
I was fortunate never to meet you.
Yet, I came to know you through the images and the stories of those who did.
I was fortunate never to meet you.
Yet, I came to know you through the images and the stories of those who did.
Categories grab headlines
But did you know it’s just about the less dangerous part of a hurricane: the wind.
The deadliest part of any tropical cyclone is always the water.
But did you know it’s just about the less dangerous part of a hurricane: the wind.
The deadliest part of any tropical cyclone is always the water.
September 21, 2025 at 9:30 PM
Categories grab headlines
But did you know it’s just about the less dangerous part of a hurricane: the wind.
The deadliest part of any tropical cyclone is always the water.
But did you know it’s just about the less dangerous part of a hurricane: the wind.
The deadliest part of any tropical cyclone is always the water.
Tokyo died in 1923.
But gave birth to a safer world.
But gave birth to a safer world.
September 1, 2025 at 4:00 PM
Tokyo died in 1923.
But gave birth to a safer world.
But gave birth to a safer world.
Every second counts when a fire starts.
Not all fires react the same, neither should you
Not all fires react the same, neither should you
August 26, 2025 at 4:15 PM
Every second counts when a fire starts.
Not all fires react the same, neither should you
Not all fires react the same, neither should you
Don’t wait until it’s declared to learn about it
Here are the different tsunami alert levels
Here are the different tsunami alert levels
August 19, 2025 at 3:30 PM
Don’t wait until it’s declared to learn about it
Here are the different tsunami alert levels
Here are the different tsunami alert levels
Hazard Risk Checker is live!
You can now check your natural hazard exposure instantly
Please give it a try and let me know if everything works on your side. 🙏🏼
Any feedback is more than welcome!
Risk Map Check 👉🏼 hazard-risk-checker.vercel.app/
You can now check your natural hazard exposure instantly
Please give it a try and let me know if everything works on your side. 🙏🏼
Any feedback is more than welcome!
Risk Map Check 👉🏼 hazard-risk-checker.vercel.app/
August 18, 2025 at 2:45 PM
Hazard Risk Checker is live!
You can now check your natural hazard exposure instantly
Please give it a try and let me know if everything works on your side. 🙏🏼
Any feedback is more than welcome!
Risk Map Check 👉🏼 hazard-risk-checker.vercel.app/
You can now check your natural hazard exposure instantly
Please give it a try and let me know if everything works on your side. 🙏🏼
Any feedback is more than welcome!
Risk Map Check 👉🏼 hazard-risk-checker.vercel.app/
Individuals, communities, or countries…
We all have 5 levels of disaster resilience to climb.
We all have 5 levels of disaster resilience to climb.
August 17, 2025 at 5:30 PM
Individuals, communities, or countries…
We all have 5 levels of disaster resilience to climb.
We all have 5 levels of disaster resilience to climb.
If your car falls into water, you have just 30 seconds to escape.
After that, one wrong move could cost your life.
This guide explains the 4 key steps you should follow to save your life (and the lives of others in the car).
Also works for #tsunami...
After that, one wrong move could cost your life.
This guide explains the 4 key steps you should follow to save your life (and the lives of others in the car).
Also works for #tsunami...
July 30, 2025 at 5:00 PM
If your car falls into water, you have just 30 seconds to escape.
After that, one wrong move could cost your life.
This guide explains the 4 key steps you should follow to save your life (and the lives of others in the car).
Also works for #tsunami...
After that, one wrong move could cost your life.
This guide explains the 4 key steps you should follow to save your life (and the lives of others in the car).
Also works for #tsunami...
52% of farmland is already affected by soil desertification.
2.6 billion people directly rely on it to survive
A time will come when ignoring it won’t be an option anymore.
2.6 billion people directly rely on it to survive
A time will come when ignoring it won’t be an option anymore.
July 6, 2025 at 4:15 PM
52% of farmland is already affected by soil desertification.
2.6 billion people directly rely on it to survive
A time will come when ignoring it won’t be an option anymore.
2.6 billion people directly rely on it to survive
A time will come when ignoring it won’t be an option anymore.
Not all #volcanoes are towering peaks like this one.
- Some are hidden underwater, along ocean ridges
- Some are wide and flat (Hawaii)
- Some are just cracks in the ground, (Iceland)
- Some are hidden underwater, along ocean ridges
- Some are wide and flat (Hawaii)
- Some are just cracks in the ground, (Iceland)
July 4, 2025 at 8:45 PM
Not all #volcanoes are towering peaks like this one.
- Some are hidden underwater, along ocean ridges
- Some are wide and flat (Hawaii)
- Some are just cracks in the ground, (Iceland)
- Some are hidden underwater, along ocean ridges
- Some are wide and flat (Hawaii)
- Some are just cracks in the ground, (Iceland)
July 4, 2025 at 4:15 PM
When do you feel an #earthquake the most
1️⃣ Distance - The closer you are, the stronger it is.
2️⃣ Depth - The shallower the earthquake, the stronger the intensity.
3️⃣ Geology - The softer the rock, the greater the tremors.
1️⃣ Distance - The closer you are, the stronger it is.
2️⃣ Depth - The shallower the earthquake, the stronger the intensity.
3️⃣ Geology - The softer the rock, the greater the tremors.
July 3, 2025 at 8:45 PM
When do you feel an #earthquake the most
1️⃣ Distance - The closer you are, the stronger it is.
2️⃣ Depth - The shallower the earthquake, the stronger the intensity.
3️⃣ Geology - The softer the rock, the greater the tremors.
1️⃣ Distance - The closer you are, the stronger it is.
2️⃣ Depth - The shallower the earthquake, the stronger the intensity.
3️⃣ Geology - The softer the rock, the greater the tremors.
In an #earthquake, most people look for an exit.
But inside a supermarket, that's the wrong move.
Shelves fall. Glass shatters.
Step away from displays and protect your head first.
Then you can think about leaving.
But inside a supermarket, that's the wrong move.
Shelves fall. Glass shatters.
Step away from displays and protect your head first.
Then you can think about leaving.
July 3, 2025 at 4:15 PM
In an #earthquake, most people look for an exit.
But inside a supermarket, that's the wrong move.
Shelves fall. Glass shatters.
Step away from displays and protect your head first.
Then you can think about leaving.
But inside a supermarket, that's the wrong move.
Shelves fall. Glass shatters.
Step away from displays and protect your head first.
Then you can think about leaving.
When #floodwaters are rushing into underground parking, your instinct is to drive out.
Worst idea
Leave your car and run upstairs by the rescue exits
Worst idea
Leave your car and run upstairs by the rescue exits
July 2, 2025 at 8:45 PM
When #floodwaters are rushing into underground parking, your instinct is to drive out.
Worst idea
Leave your car and run upstairs by the rescue exits
Worst idea
Leave your car and run upstairs by the rescue exits
The 1930s Dust Bowl was one of the worst environmental disasters in U.S. history.
But how much of the land was affected at its peak?
Scroll to get the answer.
In 1934, it was estimated that 75% of the land in the United States was affected by the #drought.
But how much of the land was affected at its peak?
Scroll to get the answer.
In 1934, it was estimated that 75% of the land in the United States was affected by the #drought.
July 1, 2025 at 4:15 PM
The 1930s Dust Bowl was one of the worst environmental disasters in U.S. history.
But how much of the land was affected at its peak?
Scroll to get the answer.
In 1934, it was estimated that 75% of the land in the United States was affected by the #drought.
But how much of the land was affected at its peak?
Scroll to get the answer.
In 1934, it was estimated that 75% of the land in the United States was affected by the #drought.
The greenest solution against landslides?
Just plant trees.
Roots bind the soil, reduce erosion, and naturally stabilize slopes.
Just plant trees.
Roots bind the soil, reduce erosion, and naturally stabilize slopes.
June 30, 2025 at 4:15 PM
The greenest solution against landslides?
Just plant trees.
Roots bind the soil, reduce erosion, and naturally stabilize slopes.
Just plant trees.
Roots bind the soil, reduce erosion, and naturally stabilize slopes.
Snapshot from History – June 29
Japan, 7 years ago,
🌧️ Over 109,000 km² flooded (Cuba’s size) ↘️
Japan, 7 years ago,
🌧️ Over 109,000 km² flooded (Cuba’s size) ↘️
June 29, 2025 at 12:00 PM
Snapshot from History – June 29
Japan, 7 years ago,
🌧️ Over 109,000 km² flooded (Cuba’s size) ↘️
Japan, 7 years ago,
🌧️ Over 109,000 km² flooded (Cuba’s size) ↘️
Don’t use wind speed to rank hurricane intensity. The ACE index was created for that.
it measures the storm’s energy over time.
With it, we can compare:
1️⃣ Single hurricane
2️⃣ Entire seasons
it measures the storm’s energy over time.
With it, we can compare:
1️⃣ Single hurricane
2️⃣ Entire seasons
June 28, 2025 at 8:45 PM
Don’t use wind speed to rank hurricane intensity. The ACE index was created for that.
it measures the storm’s energy over time.
With it, we can compare:
1️⃣ Single hurricane
2️⃣ Entire seasons
it measures the storm’s energy over time.
With it, we can compare:
1️⃣ Single hurricane
2️⃣ Entire seasons
Just because a building is still standing after the water has receded doesn’t mean it’s safe.
Damages can manifest days or weeks after the event.
In a recently flooded city, the golden rule is clear:
Assume no building is 100% safe until it has been inspected by professionals
Damages can manifest days or weeks after the event.
In a recently flooded city, the golden rule is clear:
Assume no building is 100% safe until it has been inspected by professionals
June 27, 2025 at 4:15 PM
Just because a building is still standing after the water has receded doesn’t mean it’s safe.
Damages can manifest days or weeks after the event.
In a recently flooded city, the golden rule is clear:
Assume no building is 100% safe until it has been inspected by professionals
Damages can manifest days or weeks after the event.
In a recently flooded city, the golden rule is clear:
Assume no building is 100% safe until it has been inspected by professionals
UN Water reports that the number and duration of droughts have increased by 29% since 2000,
June 26, 2025 at 8:45 PM
UN Water reports that the number and duration of droughts have increased by 29% since 2000,
If you're at the beach and a tsunami warning is issued, don’t go looking for the wave.
Even if the expected waves are smaller than the protection wall (tragic true story…) Move inland immediately
Even if the expected waves are smaller than the protection wall (tragic true story…) Move inland immediately
June 26, 2025 at 4:15 PM
If you're at the beach and a tsunami warning is issued, don’t go looking for the wave.
Even if the expected waves are smaller than the protection wall (tragic true story…) Move inland immediately
Even if the expected waves are smaller than the protection wall (tragic true story…) Move inland immediately
ACE = the total energy hurricanes release.
The average hurricane season has an ACE of 123.
2024 is 161,6
The average hurricane season has an ACE of 123.
2024 is 161,6
June 25, 2025 at 8:45 PM
ACE = the total energy hurricanes release.
The average hurricane season has an ACE of 123.
2024 is 161,6
The average hurricane season has an ACE of 123.
2024 is 161,6