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#           Rapid surface rupture mapping from satellite data: The 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence      

      November 2, 2023    

The 6 February 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence produced > 500 km of surface rupture primarily on the left‐lateral East Anatolian (~345 km) and Çardak (~175 km) faults. Constraining the length and magnitude of surface displacement on the causative faults is critical for loss estimates, recovery efforts, rapid identification of impacted infrastructure, and fault displacement hazard analysis. To support these efforts, we rapidly mapped the surface rupture from satellite data with support from remote sensing and field teams, and released the results to the public in near‐real time. Detailed surface rupture mapping commenced on 7 February and continued as high‐resolution (< 1.0 m/pixel) optical images from WorldView satellites (2023 Maxar) became available. We interpreted the initial simplified rupture trace from subpixel offset fields derived from Advanced Land Observation Satellite2 and Sentinel‐1A synthetic aperture radar image pairs available on 8 and 10 February, respectively. The mapping was released publicly on 10 February, with frequent updates, and published in final form four months postearthquake (Reitman, Briggs, et al., 2023). This publicly available, rapid mapping helped guide fieldwork and constrained U.S. Geological Survey finite‐fault and loss estimate models, as well as stress change estimates and dynamic rupture models.

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June 14, 2023

####                 Fault Rupture Mapping of the 6 February 2023 Kahramanmaraş, Türkiye, Earthquake Sequence from Satellite Data (ver. 1.1, February 2024)              

Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

#### Nadine G Reitman, PhD (she/her)

##### Research Geologist

Earthquake Hazards Program

nreitman@usgs.gov

303-273-8499

#### Rich Briggs

##### Research Geologist

Earthquake Hazards Program

rbriggs@usgs.gov

303-273-8465

#### William Barnhart, Ph.D.

##### Assistant Coordinator

Earthquake Hazards Program

wbarnhart@usgs.gov

#### Alexandra (Alex) Hatem

##### Research Geologist

Earthquake Hazards Program

ahatem@usgs.gov

303-273-8474

#### Jessica Thompson Jobe

##### Research Geologist

Earthquake Hazards Program

jjobe@usgs.gov

303-273-8474

#### Christopher B DuRoss

##### Research Geologist

Earthquake Hazards Program

cduross@usgs.gov

303-273-8544

#### Ryan D Gold, Ph.D.

##### Director, Geologic Hazards Science Center

Geologic Hazards Science Center

rgold@usgs.gov

303-273-8633

####             Camille Collett (Former Employee)          

##### Geologist, Public Affairs Specialist

Earthquake Hazards Program

## Related Content

June 14, 2023

####                 Fault Rupture Mapping of the 6 February 2023 Kahramanmaraş, Türkiye, Earthquake Sequence from Satellite Data (ver. 1.1, February 2024)              

Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

#### Nadine G Reitman, PhD (she/her)

##### Research Geologist

Earthquake Hazards Program

nreitman@usgs.gov

303-273-8499

#### Rich Briggs

##### Research Geologist

Earthquake Hazards Program

rbriggs@usgs.gov

303-273-8465

#### William Barnhart, Ph.D.

##### Assistant Coordinator

Earthquake Hazards Program

wbarnhart@usgs.gov

#### Alexandra (Alex) Hatem

##### Research Geologist

Earthquake Hazards Program

ahatem@usgs.gov

303-273-8474

#### Jessica Thompson Jobe

##### Research Geologist

Earthquake Hazards Program

jjobe@usgs.gov

303-273-8474

#### Christopher B DuRoss

##### Research Geologist

Earthquake Hazards Program

cduross@usgs.gov

303-273-8544

#### Ryan D Gold, Ph.D.

##### Director, Geologic Hazards Science Center

Geologic Hazards Science Center

rgold@usgs.gov

303-273-8633

####             Camille Collett (Former Employee)          

##### Geologist, Public Affairs Specialist

Earthquake Hazards Program

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