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20200322_M5.1_Zagreb

🌎 2020 M5.3 Zagreb earthquake

[[TOC]]

📂 The repository

This repository hosts detailed information about the 2011 M6.9 Sikkim earthquake in India.

Available information in the folders:

  1. Impact
  2. Ruptures
  3. Recording stations
  4. OpenQuake_gmfs

🚀 The earthquake at a glance

The 2020 Zagreb earthquake, with a magnitude of M5.3, struck on March 22, 2020, at 6:24 AM local time. Its epicenter was located approximately 7 kilometers north of Zagreb, Croatia. The earthquake, which reached a maximum Modified Mercalli Intensity (MMI) of VIII, caused extensive damage, particularly in Zagreb and its surrounding areas. The capital city was among the hardest hit, with significant damage to older buildings and historic structures. The disaster resulted in 1 reported fatality and approximately 27 injuries, alongside economic losses exceeding 1800 million USD, ranking it as one of the most costly earthquakes in Croatia's modern history. Although no tsunamis, landslides, or fires were recorded, minor liquefaction occurred in certain localized areas. The earthquake was preceded by multiple foreshocks and followed by numerous aftershocks, the strongest reaching a magnitude of 5.0, compounding structural damage and heightening public concern.

FIELD DESCRIPTION
Year 2020
Country Croatia
Region Europe
Event Name Zagreb 2020
Local Date 22/03/2020
Local Time 06:24:03
Latitude (decimal degrees) 45.9072
Longitude (decimal degrees) 15.9697
Depth (km) 10
Mw 5.3
Max Intensity (MMI) VIII
Fault mechanism Reverse
Tectonic region type Active Shallow Crust
USGS event ID us70008dx7

Estimated and observed ground shaking

The folder OpenQuake_gmfs contains the input files required to generate ground motion fields, considering different rupture solutions and conditioning the ground shaking to the recording stations for the event, where available. The figures below present an example of the results, illustrating the median ground motion fields with and without conditioning. These results are based on the rupture and ground motion model that demonstrates the lowest nominal bias. The maximum recorded Peak Ground Acceleration (PGA) was [insert value here], observed at [insert location here]. If no seismic station data were available for the event, the generated ground motion fields are shown without conditioning to recording stations, as illustrated in the figures.

☄️ 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:

Attribute Value
Fatalities ~1
Injured ~27
Displaced population ~18915
Affected population ~60000
Affected units nan
Damaged units 20000 Buildings
Collapsed units 6350 Buildings
Economic losses 1800-6800 M USD
Insured losses nan
Earthquake-triggered effects nan