A: You don't have to fill out all the fields. If you don't know the answer, leave it blank. Only the source of your information is required.

A: While precise locations are much more useful for research, it's better to describe what you do know, rather than give exact coordinates that might be wrong. So if you only know what country it happened in, just write that.

A: Yes. Just make sure to provide the date when the landslide occurred, not today's date. If you only have a rough idea of when it happened, you can describe it at the end.

A: Yes, we accept reports from a variety of sources, including news articles and social media.

A: Your safety is the top priority. If you witness an active landslide:

1. Move away from the path of the landslide.
2. Alert local emergency services.
3. Later on, you can report the landslide from a safe place.

For more information: USGS Landslide Safety

A: After filling out the form, click the "Email this report" button. This will open your default email client with a draft message containing your report. Review the information and send the email to submit your report.

A: No, we do not put your personal information in the database. However, the person reading your report will see your email address. If you want total anonymity, please consider creating a new email account for the sole purpose of reporting landslides.

A: We probably haven't updated the online database yet, but you can check your sent email folder just to verify that the report went out. It's also possible that a large attachment might have led our inbox to filter it. If it's been a few weeks and you still don't see your report, feel free to reply to your original email.

A: Yes, if you have new information or need to correct a submitted report, please "reply all" to your original emailed report.

A: Our system is designed for individual reports. If you have multiple landslides to report, please contact gsfc-landslidereporter@mail.nasa.gov, and we can discuss the best way to get your information.

A: Our research has been focused on landslides triggered by rainfall, but all landslide reports may be valuable to science.

A: Please feel free to report landslides anywhere on Earth, regardless of where you live.

A: NASA uses your reports to study the relationship between landslides and rainfall and to evaluate the global landslide nowcast.

A: You can view the Landslide Reporter Catalog through the Landslide Viewer application. This interactive map allows you to explore landslides from around the world.

A: Yes, the data is publicly available at Landslide Viewer. When using the Landslide Reporter Catalog, please cite the following article:

Juang, C.S., Stanley, T.A., Kirschbaum, D.B. (2019).
"Using citizen science to expand the global map of landslides: Introducing the Cooperative Open Online Landslide Repository (COOLR)."
PLOS ONE 14, e0218657.
10.1371/journal.pone.0218657

A: We do use satellite imagery and machine learning to map landslides (e.g.: https://github.com/nasa/salad). However, these methods may not capture all landslides, especially when obscured by vegetation or clouds. Also, ground-based reports can provide additional details such as the exact timing, local conditions, and impacts.