Amtrak partially suspended rail operations in Florida on April 20, 2026, due to wildfires in Putnam and Clay counties, which have burned approximately 1 093 – 1 214 ha (2 700 – 3 000 acres). Passenger trains were halted as a precaution, including Train 98 from Miami to Jacksonville carrying 232 passengers.
Severe flooding and landslides struck Wellington, New Zealand, between April 20 and 21, 2026, after 77 mm (3 inches) of rain fell in less than 1 hour, prompting evacuations across multiple suburbs and leaving one person missing. A state of emergency remains in place as saturated ground and additional rainfall maintain the risk of further flooding and landslides.
Japan Meteorological Agency (JMA) issued an official advisory warning of an elevated risk of a larger earthquake along its Pacific coast on April 20, 2026, after a M7.4 quake near the Japan Trench at 07:53 UTC (16:53 local time). The agency estimates about a 1% chance of a Mw7.8 or greater earthquake occurring within seven days, based on historical statistics.
Heavy snow and strong winds are forecast to impact the Sierra Nevada, California, from April 21 to April 22, 2026, as a Pacific storm system moves inland, bringing significant snowfall to elevations above 2 100 m (7 000 feet). Authorities warn that travel through major mountain passes could become very difficult to impossible due to snow-covered roads and reduced visibility.
A major earthquake registered by the USGS as M7.4 struck near the east coast of Honshu, Japan, at 07:53 UTC (16:53 local time) on April 20, 2026. The agency is reporting a depth of 35 km (21.7 miles). JMA and EMSC are reporting M7.4 at a depth of 10 km (6 miles). According to the Pacific Tsunami Warning Center (PTWC), hazardous tsunami waves are possible within 300 km (186 miles) of the epicenter.
Red Heavy Rain Warnings were issued for Wellington and Wairarapa on Monday, April 20, 2026, as flooding, swollen rivers, and landslides cut through infrastructure across the region, prompting the declaration of a state of emergency. Further heavy rain is forecast through Tuesday, April 21, with accumulations of up to 150 mm (5.9 inches) expected in the hardest-hit areas.
A strong and shallow earthquake registered by the USGS as M6.1 hit Tonga at 17:34 UTC on April 19, 2026. The agency is reporting a depth of 36 km (22.4 miles). EMSC is reporting the same magnitude and depth.
A tornado outbreak struck the Upper Midwest on April 17, 2026, producing multiple EF-2 and EF-3 tornadoes across southeast Minnesota and western Wisconsin, damaging more than 100 homes and injuring at least two people. The strongest tornado, rated EF-3, caused severe structural damage along its path, while the National Weather Service La Crosse office issued a record 26 tornado warnings during the event.
A cluster of underground pipe failures has been detected in San Ramon and surrounding East Bay communities, California, following a sequence of earthquake swarms active in the area since 2025. The incidents include fractured water and sewer lines, often identified only after prolonged leakage periods and abnormal water usage. Experts consider ground movement associated with recent seismic activity as a possible contributing factor, although causation has not been confirmed.
A severe weather outbreak produced multiple tornadoes across the Midwestern United States on April 17, 2026, resulting in structural damage to residential buildings and infrastructure in several states. Preliminary National Weather Service data indicates more than 20 tornado reports, with impacts concentrated in Wisconsin, Illinois, and Minnesota and extending into Missouri, and at least one reported injury.
