Earth Observation Group

Utilizing cutting edge satellite technology and data to inform stakeholders on issues related to oil and gas, power outages, forest fires, and fishing.

Important Notice

To improve our system security, all users will need to register for a free account to access EOG data. Click to read the announcement.


The Earth Observation Group (EOG) specializes in nighttime observations of lights and combustion sources worldwide. The group started working with Defense Meteorological Satellite Program (DMSP) data in 1994 and has produced a time series of annual cloud-free composites of nighttime lights. EOG’s current focus is on deriving products from nighttime Visible Infrared Imaging Radiometer Suite (VIIRS) data.

Earth Day 2021

By Elijah Mt. Castle Earth Day is an international day of environmental protection. Started on April 22, 1970 Earth Day is now observed in over 193 countries. Earth Day was first proposed at the 1969 United Nations Educational, Scientific and Cultural Organization...

Cargo Vessels Waiting to Pass the Suez Canal Doubled in 24 Hours

By Fengchi Hsu Ever Given, one of the largest cargo vessels in operation, was stuck in the Suez Canal for days. This incident blocks the two-way traffic of the canal, which causes the number of cargo vessels waiting to pass the canal doubled in 24 hours from March...

Weeks Long Fire Contained in Similipal National Park

By Elijah Mt. Castle Similipal National Park has been aflame since February 24th 2021, and is now contained according to government officials. The associated tiger sanctuary also caught fire. The park, located in Odisha India, is an important biosphere for the...

Mt. Etna Erupts 4 Times in Four Days

by Elijah Mt. Castle Mt. Etna, in the Sicilian province of Catania, has been intermediately erupting for four days now. The eruptions began on February 16th 2021. At this time the volcano is no danger to any of the surrounding villages and the lava is flowing into the...

Power Outage in Texas Due to Extreme Weather

By Feng Chi, (David) Hsu Download full resolution image here Texas was hit by snow and freezing temperatures in mid-February 2021. Numerous areas experienced power outages as power plants and renewable energy sources shutdown and have been slow to restart. The outages...



Global Gas Flare Observed From Space

With VIIRS Nightfire (VNF), EOG continues to monitor each and every single one gas flares around the world. Annual summary of global gas flare activities is also compiled. Learn more

Looking for older dataset produced with DMSP? Learn more

VIIRS Lumen Watch

A quick and comprehensive way to monitor an area of interest with Nighttime Light. Especially useful to monitor the trend and incidents of power supply. See our demo for Rohingya Refugee Camp near the border of Bangladesh and Myanmar. Demo





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