Sinkhole Survey

The Oklahoma Geological Survey (OGS) is collecting data about land subsidence and sinkholes in our state. Subsidence and sinkholes are places where land appears to be caving in, and can occur for a variety of reasons. They may appear as small or large depressions, under roads or sidewalks, or in vegetated areas.

The OGS is collecting data about where this occurs in Oklahoma to better understand this hazard.

All you need to do is tell us a bit about subsidence that you've seen, either on your land, or around the area where you live. This form will take just a few minutes to complete.

Thank you for your contributions!

EXAMPLE: This image shows a sinkhole in a grassy field.

Source: https://www.krmg.com/news/local/huge-sinkhole-opens-broken-arrow-neighborhood/oquPrrDCVnzPCrpmYJAcKO/

About how big is the area that is shifting?

Length (feet)

Width (feet)

Depth (specify inches or feet)

Is there vegetation in or around the area? (check all that apply)

Grass
Trees
Bushes
No vegetation

Put your ear close to the area. Do you hear moving water?

Yes
No
Not sure

Is the shifting happening slowly or quickly? It may be happening quickly if you notice changes over short periods of time. If it has looked the same for a long time, it is probably happening slowly.

Slowly - no obvious changes over time
Quickly - obvious changes over short periods of time

Does the shifting seem to still be occurring or has it stopped?

Still seeing changes
Haven't noticed changes in a while

Where is the sinkhole? Please record the address.

Address

City

State

Postal code

If you know the latitude and longitude, please record below in decimal form and/or degrees-minutes-seconds. (See directions below for help).

Directions to get the coordinates of a place:

1. On your computer, open Google Maps. Find the location where the sinkhole is located.

2. Right-click the place or area on the map. Select What's here?

3. At the bottom, you’ll see a card with the coordinates. Enter them below.

Latitude (ex: 35.257821)

Longitude (ex: -97.587345)

Latitude (ex: 35° 12' 39'')

Longitude (ex: -97° 26' 25'')

If possible, please upload a photo of the sinkhole. It can be helpful to have a person or meter stick in the image for scale.

Do you have any other comments? (e.g., do you recall when the sinkhole first appeared?)

If we have questions about your sinkhole, may Oklahoma Geological Survey scientists contact you?

Name

Email address

Phone number