🌍 Global Natural Disasters This Week

Floods, Hurricanes, Volcanoes, Earthquakes & Wildfires — September 26–October 2, 2026

Orbis Weather | Friday, October 2, 2026

From destructive flooding across Asia to powerful hurricanes in the Pacific and renewed volcanic activity in Hawaii and Italy, the final days of September brought another exceptionally active week for natural hazards around the world.

Flooding has been particularly widespread. Major tropical cyclones have churned across several ocean basins, while earthquakes, volcanic eruptions and large wildfires have added to the week’s global disaster picture.

Here are some of the most significant events Orbis Weather is tracking.

🌊 1. Deadly Flooding Hits India, Nepal and Thailand

Some of the week’s most serious impacts have come from extreme rainfall across South and Southeast Asia.

Flooding and severe weather in India, Nepal and Thailand have killed dozens of people and affected hundreds of thousands.

In India’s Uttar Pradesh state, Reuters reported 56 deaths following exceptionally heavy rainfall. Neighboring Nepal reported at least 14 deaths with 11 people missing as rivers rose and flash-flood concerns intensified.

Thailand has also experienced widespread flooding. Heavy rainfall since mid-September had affected 41 provinces, killed at least eight people and impacted more than 580,000 homes by September 29. Thousands of residents were evacuated in Bangkok as authorities deployed boats and emergency food services.

The broader India-Nepal flooding was also visible in satellite observations as torrential rainfall pushed the Gandak River to exceptionally high levels.

Main hazards:
🌧️ Torrential rain
🌊 River flooding
⚠️ Flash floods
⛰️ Landslides
🏠 Displacement

🌀 2. Hurricane Polo Slams Mexico

The eastern Pacific produced one of the week’s most dangerous storms.

Hurricane Polo underwent explosive strengthening near Mexico, becoming a powerful major hurricane as it approached Baja California Sur.

Hurricane warnings were issued along portions of both coasts of the peninsula as Polo approached with winds near 120 mph (195 km/h) while still a Category 3 hurricane on September 27.

NASA described Polo as one of several powerful Pacific storms producing destructive effects ashore during an unusually active stretch of tropical weather.

Flooding associated with the storm affected communities in northern Mexico, and recovery operations continued into the end of the week.

Main hazards:
💨 Destructive winds
🌊 Storm surge
🌧️ Flash flooding
⛰️ Mudslides
🌊 Dangerous surf

🌀 3. Hurricane Rachel Strengthens Off Mexico

Mexico’s Pacific coastline faces another tropical threat.

By October 2, Hurricane Rachel had strengthened into a Category 3 hurricane, producing sustained winds around 120 mph while moving slowly west-northwest.

Large swells generated by Rachel were creating dangerous surf and rip currents along portions of Mexico’s coast, while heavy rainfall threatened flooding and landslides in areas including Baja California Sur, Sinaloa and Jalisco.

The storm follows closely behind Hurricane Polo, creating additional concerns for communities still recovering from flooding.

🌪️ 4. Remarkably Active Pacific Tropical Cyclone Belt

Rachel and Polo are only part of the story.

Global disaster monitoring showed numerous tropical cyclones active during the past week, including systems named Rachel, Nolo, Choi-Wan, Surigae, Polo, Hanna and Odalys across various basins.

The concentration of storms highlights how active the tropical Pacific has become heading into October.

Several systems have generated combinations of:

🌊 Coastal flooding
💨 Damaging winds
🌧️ Extreme rainfall
🌊 Dangerous ocean swells
⛰️ Landslide threats

Residents throughout vulnerable coastal regions should continue monitoring official meteorological agencies as October begins.

🌧️ 5. Powerful Nor’easter Floods U.S. Northeast

A strong early-season nor’easter battered the northeastern United States during the weekend.

Heavy rain, strong winds and large waves caused coastal flooding, widespread power outages and transportation disruption from the Mid-Atlantic into New England.

Around 100,000 customers lost electricity during the height of the storm, while hundreds of flights were canceled.

At least one person was killed in Brooklyn when a tree fell during the storm.

Flooding affected communities from Virginia northward through New Jersey, New York and New England.

Main hazards:
🌊 Coastal flooding
💨 Damaging winds
🌧️ Heavy rain
🌳 Falling trees
⚡ Power outages
✈️ Travel disruption

🌋 6. Kīlauea Erupts Again in Hawaii

Hawaii’s Kīlauea volcano remained highly active this week.

During the night of September 30, lava fountains, spatter and lava flows erupted from vents inside Halemaʻumaʻu craterat Kīlauea’s summit.

Scientists from the U.S. Geological Survey’s Hawaiian Volcano Observatory also detected magma moving underground beneath the caldera during the eruption.

Kīlauea remains one of the world’s most closely monitored active volcanoes.

Potential hazards around an eruption can include volcanic gases, airborne volcanic particles and localized lava activity.

🌋 7. Mount Etna Erupts in Sicily

Europe’s largest active volcano also made headlines.

Mount Etna in Sicily experienced renewed eruptive activity, with volcanic ash affecting the region around Catania.

Etna was listed among the significant global volcanic events monitored during the week beginning September 27.

Ash in the atmosphere also contributed to aviation disruption around Catania.

Worldwide, the Smithsonian/USGS reporting network documented new activity or unrest at seven volcanoes and ongoing activity at another 18 volcanoes during September 24–30.

🌎 8. Earthquakes Continue Around the Pacific

Earthquake activity continued around the Pacific Ring of Fire.

One notable event occurred in Washington state on September 29 when a magnitude 4.2 earthquake struck about 6 kilometers west-northwest of Wauna.

The earthquake occurred at a depth of approximately 27.9 km and produced weak shaking. The USGS assigned the earthquake a Green PAGER alert, indicating a low likelihood of significant casualties or economic losses.

The event followed a much stronger magnitude 6.6 earthquake near New Caledonia on September 25, just before this reporting period began. That earthquake also received a Green PAGER alert despite strong localized shaking.

🔥 9. Large Wildfires Burn Across Southern Africa

While storms and floods dominated headlines, substantial wildfires continued burning across parts of southern Africa.

Global disaster monitoring identified large fires during the week in Mozambique, Zambia and Angola.

Some individual detected burn areas exceeded 40,000 hectares in Mozambique, while other major fires were recorded across Angola and Zambia.

Dry vegetation, heat and wind can allow fires in these regions to expand rapidly.

Wildfire smoke can also become a significant regional air-quality hazard even far from the flames.

🌊 10. Flooding Reported Across Multiple Continents

The scale of global flooding this week extends well beyond South Asia.

The Global Disaster Alert and Coordination System recorded flood events affecting areas including:

Ghana • Guinea • Nigeria • Democratic Republic of Congo • India • Nepal • Thailand • Myanmar • China • Mexico • Italy • United States.

Although the severity varied considerably from one location to another, the geographic spread illustrates how dominant flooding has been in the global natural-hazard picture during the past several days.

🌍 Global Disaster Snapshot

🌊 Flooding

Very High Activity

Major flooding has affected parts of Asia, Africa, North America and Europe.

🌀 Tropical Cyclones

Very High Activity

The Pacific remains particularly busy, with multiple named systems tracked during the week.

🌋 Volcanoes

High Activity

Kīlauea and Etna are among the volcanoes showing significant activity, while numerous other volcanoes worldwide remain in states of eruption or unrest.

🌎 Earthquakes

Moderate Activity

Earthquakes continue around major tectonic boundaries, although the USGS significant-earthquake list shows relatively limited major damaging seismic activity during this particular reporting period.

🔥 Wildfires

High Regional Activity

Large fires continue across portions of southern Africa, with significant burn areas detected in Mozambique, Angola and Zambia.

🔭 What We’re Watching Next

The first week of October could remain extremely active.

🌀 Eastern Pacific: Hurricane Rachel and additional tropical activity remain important threats to monitor.

🌧️ South & Southeast Asia: Saturated ground means additional rainfall could quickly produce renewed flash flooding and landslides.

🌋 Hawaii: Kīlauea’s summit eruption remains under close scientific observation.

🌋 Mediterranean: Mount Etna continues to require monitoring for additional eruptive activity and aviation impacts.

🔥 Southern Africa: Large wildfire complexes remain active across several countries.

🌎 Orbis Weather Global Hazard Outlook

The dominant disaster story this week has been water.

From catastrophic flooding across South and Southeast Asia to Hurricane Polo in Mexico and the powerful nor’easter along the U.S. East Coast, extreme rainfall and coastal flooding have affected communities across several continents.

At the same time, a remarkably active Pacific tropical cyclone pattern, volcanic activity at Kīlauea and Etna, and extensive wildfires across southern Africa demonstrate the diversity of hazards currently affecting the planet.

Orbis Weather will continue tracking major earthquakes, hurricanes, typhoons, floods, wildfires, volcanic eruptions and other significant natural hazards around the world.

Stay aware. Stay prepared. Stay informed.