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HighLandslide risk after an earthquakeCS: 34 · v5

Landslide risk after an earthquake in China

ChinaUSGS

Right now

Nothing else has been detected within 20 km in the last 24 hours.

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Reported by USGS 11 days ago.

It is the only one we have recorded within 20 km of this point since 22 October 2026.

What the source measured

USGS reported: M7.0 earthquake near 191 km ENE of Nagqu, China. USGS ground-failure estimate: landslide alert orange; aggregate landslide hazard 43 km²; population exposure 120; liquefaction alert yellow. Depth: 18.0 km.

How we know

One source: USGS. Not yet confirmed by a second, independent source.

Our own score for this event is 34 out of 100.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

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

Event data

TypeLandslide risk after an earthquake
SeverityHigh
Calamity Score (ours)34 / 100
Legacy data-support index0.60/1
Coordinates32.3805, 93.7797
Nearest cityNagqu (191 km)
Urban exposure index (PEI)0 within 10 km
Impact tierminor
Timestamp2026-10-22T14:33:40.353Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us6000u43g
LicenceUS public domain · USGS Landslide Hazards Program

Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: usgs_landslide. Occurrence: 2026-10-22T14:33:40.353Z.

First archived: 2026-10-23T00:09:27.556Z. Material modification: not recorded.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

Score breakdown

60
intensity
0
Urban PEI term
35
Scenario weight
30
Recorded reference / batch anomaly

Technical details

Magnitude7
Place191 km ENE of Nagqu, China
DepthKm18
LandslideAlertorange
LiquefactionAlertyellow
LandslideHazardKm243
LandslidePopulation120
LiquefactionHazardKm234
LiquefactionPopulation130
QuakeIdus6000u43g

Cascade risks

river blockage

Safety information

What to do in a landslide

Three things first, then the warning signs and what to do before, during and after. From FEMA’s Ready.gov.

For this reportLandslide risk after an earthquake · China

  1. Get out of its path

    Move quickly uphill or to the side, away from the slide and from the valley below it.

    Ready.gov

  2. Listen in heavy rain

    Cracking trees, knocking boulders, a rumble growing louder: leave at once, even at night.

    Ready.gov

  3. Do not cross flowing mud

    Never drive or walk across a road or bridge covered by moving water or mud.

    Ready.gov

Before, during, after. Here it is “after”.

Before · If you live on or below a slope

  • Learn the slow signs

    Doors that stick, new cracks, tilting walls, poles or trees, water springing from new places.

  • Get the alerts

    And a plan to leave.

  • Ask an expert

    About the ground around your house.

Ready.gov (FEMA)

During · In heavy or long rain

  • Stay awake and alert

    Many deadly slides happen at night.

  • Avoid valleys and low ground

    Debris flows run along them.

Ready.gov (FEMA)

After · When it has moved

  • Keep away

    More slides can follow.

  • Watch for flooding

    It often comes after a slide.

  • Report damage

    Broken pipes, lines and roads, to the authorities.

Ready.gov (FEMA)

If a life is in danger

Emergency numbers: China

Questions people ask

What are the warning signs of a landslide?

Sudden: rushing water and mud, cracking trees, a growing rumble. Slow: sticking doors, new cracks, tilting walls, fences or trees, water appearing in new places. Source: Ready.gov (FEMA).

Are burned slopes more dangerous?

Yes. After a wildfire, heavy rain can turn bare slopes into debris flows. Source: Ready.gov (FEMA).

Sources, read on 4 October 2026

  1. Ready.gov (FEMA) — Landslides and debris flows

The advice is summarised from these pages, and the figures are theirs. Calamity.live is not an emergency service and this page is not an official alert: follow your local authorities.

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