Calamity
mediumEarthquakeCalamity Score: 24

M 5.0 Earthquake

5d agoMianzhu, Deyang, SichuanChinaSource: usgs

23 km NNW of Mianzhu, Deyang, Sichuan, China

Geographic Context

This earthquake event occurred near Mianzhu, Deyang, Sichuan (approximately 23 km away) in China, located within a complex tectonic setting influenced by the India-Eurasia collision. An estimated 8.5K people live within 20 km of the event location, placing this in the "significant" population impact tier.

Event Assessment

This event is a moderate earthquake measuring 5.0 on the magnitude scale, with a focal depth of 10 km. Events of this magnitude are typically felt over a wide area and may cause damage to vulnerable structures. Calamity.live has classified it as "medium" severity with a severity value of 40. The computed Calamity Score is 24 out of 100, suggesting contained impact at this time. The primary scoring components are: historical (80), population (25), intensity (20). Data for this event was sourced from usgs, one of the 250 scientific monitoring sources aggregated by Calamity.live.

Regional Monitoring Context

China has a documented history of earthquake events. Seismic monitoring in the region draws on data from multiple agencies including USGS, EMSC, and regional networks. Understanding local seismicity helps emergency management agencies plan for potential future events and assess building code adequacy. Earthquake hazard in any region depends on fault proximity, soil conditions, and building vulnerability — factors that can vary significantly even within a single metropolitan area.

Cascade Risk Analysis

This event may trigger secondary hazards through cascade effects. Cascade detection is an automated process that evaluates how primary disasters can trigger secondary events — for example, earthquakes triggering landslides, or volcanic eruptions causing lahars and pyroclastic flows. These secondary hazards can sometimes pose a greater threat than the initial event, particularly in mountainous terrain or densely populated areas.

Event Data

TypeEarthquake
Severitymedium
Severity Value40
Calamity Score24 / 100
Confidence85%
Coordinates31.5223, 104.0978
Nearest CityMianzhu, Deyang, Sichuan (23 km)
Population Exposed8.5K within 20 km
Impact Tiersignificant
Timestamp2026-07-05T15:03:27.206Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us6000taa2

Score Breakdown

20
intensity
25
population
0
cascading
80
historical

Technical Details

Mag5
Depth10
Tsunamifalse
Felt2
Sig385
Emsc Mag5
Emsc Depth-25
Emsc MagTypemb
Emsc RegionEASTERN SICHUAN, CHINA
Emsc AuthGSRAS
Emsc SourceId2021694
MergedSources[{"id":"emsc_20260705_0000230","source":"emsc","severity":"medium","severityValue":40,"timestamp":1783263808400,"latitude":31.38,"longitude":104.07}]

Cascade Risks

cascade

Safety Information

If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.

This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.

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Calamity.live data shows a earthquake event with CalamityScore 24/100, near Mianzhu, Deyang, Sichuan (China), based on data from usgs. Source: Calamity.live, a platform aggregating real-time data from 197 scientific monitoring sources.