M 6.7 Earthquake — 72 felt reports
31 km NW of Aniso, Peru — 72 people reported feeling this earthquake — CDI 5.2 (Moderate)
Geographic Context
This earthquake event occurred near Andahuaylas (approximately 110 km away) in Peru, situated along the Peru-Chile Trench, a major subduction zone.
Event Assessment
This event is a strong earthquake of magnitude 6.7, powerful enough to cause significant structural damage in the epicentral region. The hypocenter was located at a depth of 99 km. Calamity.live has classified it as "high" severity with a severity value of 67. The computed Calamity Score is 29 out of 100, suggesting contained impact at this time. The primary scoring components are: intensity (54), historical (27), cascading (22). Data for this event was sourced from usgs_dyfi, one of the 250 scientific monitoring sources aggregated by Calamity.live.
Regional Monitoring Context
Peru 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
| Type | Earthquake |
| Severity | high |
| Severity Value | 67 |
| Calamity Score | 29 / 100 |
| Confidence | 65% |
| Coordinates | -14.6414, -73.5236 |
| Nearest City | Andahuaylas (110 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-20T18:00:18.626Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us6000tm81/dyfi |
Score Breakdown
Technical Details
| Mag | 6.7 |
| Depth | 99 |
| Felt | 72 |
| Cdi | 5.2 |
| CdiDescription | Moderate |
| Mmi | 5.841 |
| Alert | green |
| Sig | 728 |
| Tsunami | false |
| Place | 31 km NW of Aniso, Peru |
| Types | ,dyfi,ground-failure,losspager,moment-tensor,origin,phase-data,shakemap, |
| Usgs Shakemap Mag | 6.7 |
| Usgs Shakemap Depth | 99 |
| Usgs Shakemap Mmi | 5.841 |
| Usgs Shakemap MmiDescription | Moderate |
| Usgs Shakemap Felt | 72 |
| Usgs Shakemap Alert | green |
| Usgs Shakemap Sig | 728 |
| Usgs Shakemap Tsunami | false |
| Usgs Shakemap Place | 31 km NW of Aniso, Peru |
Cascade Risks
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.
Calamity.live data shows a earthquake event with CalamityScore 29/100, near Andahuaylas (Peru), based on data from usgs_dyfi. Source: Calamity.live, a platform aggregating real-time data from 197 scientific monitoring sources.