USGS

Celebrate Geologic Map Day on October 14, 2022!

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Geologic Map Day

Celebrate Geologic Map Day on October 14, 2022!

Welcome to Geologic Map Day, a special event designed to promote awareness of geologic mapping and its vital importance to society.

Surveying the Delaware Bay

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DELAWARE BAY, Del.- Today the United States Geological Survey (USGS) launched a demonstration of what will be a study over the next few days of the Delaware Bay using a helicopter carrying an electromagnetic sensor.

Celebrate Geologic Map Day on October 18, 2019!

Date

Geologic Map Day
Celebrate Geologic Map Day on October 18, 2019!

Welcome to Geologic Map Day, a special event designed to promote awareness of geologic mapping and its vital importance to society.

Dover, DE earthquake, November 30, 2017

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At shortly before 5 pm on Thursday, November 30, 2017, there was a magnitude 4.1 earthquake east of Dover, DE. This event has caused little damage and no casualties.