Satellite Imaging Corporation provides Satellite Images and GIS Maps in Natural Disaster Mitigation.

https://www.satimagingcorp.com/applications/environmental-impact-studies/natural-disasters/

One of the best services out there is Satellogic, which has some of the best pricing on the market.

https://satellogic.com/

Here are useful links web archives where you can retrieve several satellite datasets for Disaster mapping and modeling.

https://earthexplorer.usgs.gov/

https://landsatlook.usgs.gov/explore

https://apps.sentinel-hub.com/eo-browser/

You can use high resolution data (like sentinel) for mapping. Also, SAR data is very helpful for temporal monitoring.

En lo personal, he utilizado la red de la Agencia Espacial Europea, y me parece muy adecuada y bastante completa, se especializa justamente en el monitoreo de prevención de desastres. "Sentinel-hub" es muy amigable en su utilización y tiene diversos valores agregados, por ejemplo, te puedes suscribir a su revista digital de manera gratuita y mensualmente comparten sus hallazgos y formas muy prácticas de manejar su plataforma. Además la "ESA", tiene muy buena disposición para organizar capacitaciones gratuitas en todas la Universidades del mundo para usar sus "Sentinels", únicamente hay que programar con anticipación y siempre se muestran muy colaborativos. Yo soy de México y he estado en sus capacitaciones a través de otros países, por ejemplo he estado en los cursos que ha organizado la Agencia Espacial Paraguaya y nunca tienen problema en aceptar participantes en sus capacitaciones. Ojalá te sirva la información. ¡Saludos!

Jens Kleb Thank you

Thank you for adding your answer dear Mehmet Karahan

Nishu Bhardwaj Nishu Bhardwaj Jonathan Grim Samuel Akande Nishu Bhardwaj Víctor Hugo Rodríguez Martínez Thank you for adding your answers

Nishu and others, thank you for your information.

SAR is a good option in the chart below you can see some of SAR satellites and main characteristics. All, are freely available. I recommend you too, to see in the NASA ARSET web on which you could find very interesting training courses about SAR and Remote Sensing.

MODIS will be a good option due to its temporal resolution. You can use other datasets to focus microscopically on your problem statement/AOI.

Before, during, or after? And 'disaster' is a large domain, and needs are different across the world and different scales. For 'during', OSM's HOT team might provide some examples: https://www.hotosm.org/impact-areas/disaster-risk-reduction/

Also, the major imagery companies provide free data after an official declaration has been made, under specific terms and conditions.

The 'before' is foundational on the geospatial 'base mapping', DTM, DSM, roads, rivers, buildings, bridges and all that infrastructure which is vulnerable. There is a team in Nepal that focuses of earthquake risk and classifies buildings. Much of that can be collected with cell phones.