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🌎 2012 M7.6 Nicoya earthquake

[[TOC]]

📂 The repository

This repository hosts detailed information about the 2012 M7.6 Nicoya earthquake in Costa_Rica.

Available information in the folders:

  • Impact
  • Recording stations
  • Ruptrues
  • OpenQuake_gmfs

🚀 The earthquake at a glance

  • The 2012 Costa Rica earthquake occurred at 08:42 local time (14:42 UTC) on September 5. The epicenter of the 7.6 Mw earthquake was in the Nicoya Peninsula, 11 kilometers east-southeast of Nicoya. A tsunami warning was issued shortly afterwards, but later cancelled. Two people are known to have died, one from a heart attack and another, a construction worker, crushed by a collapsing wall. It was the second strongest earthquake recorded in Costa Rica's history, following the 1991 Limon earthquake. (Wikipedia).

Type of sequence

Occurrence of other phenomena:

Ground shaking

The estimation of the ground shaking has The folder OpenQuake_gmfs stores the required input files to generate the ground motion fields considering different rupture solutions and conditioning the ground shaking to the recording stations for the event, when available. The figures below present an example of the results, showing the median ground motion fields with and without conditioning the ground shaking for the rupture and ground motion model that indicates the lowest nominal bias.

☄️ Consequences

The information collected for the consequences of the event and the corresponding references is available in the Impact folder. When available, information at different geographical levels is provided considering the building damage, economic losses and human impact.

A summary of the main consequences of the event is available in the earthquake_information.csv file:

FIELD DESCRIPTION
Year 2012
Country Costa Rica
Region Guanacaste
Event_Name Nicoya
Local_Date 05/09/2012
Local_Time 08:42:00
Longitude -85.545
Latitude 9.828
Depth_(km) 15.4
Mw 7.6
Max_Intensity_(MMI) VII
Fault_mechanism Purely inverse
Tectonic_region_type Subduction interface
Fatalities 1-2
Injured 20-225
Displaced_Population 1474
Affected_Population 537
Affected_Units nan
Damaged_Units nan
Collapsed_Units nan
Economic_Losses 45 M USD
Insured_Losses 32 M USD
Induced_Effects Tsunami, landslides
USGS page https://earthquake.usgs.gov/earthquakes/eventpage/usp000jrsw/executive
Wikipedia page https://en.wikipedia.org/wiki/2012_Costa_Rica_earthquake

🌟 Contributors

We would like to acknowledge the many contributors to the Earthquake Consequence Database.