M6.1

M 6.1 - 8 km N of San José Poliutla, Mexico

Strong Earthquake · November 15, 2012 · 8 km N of San José Poliutla, Mexico

Key Insights

•This M6.1 strong earthquake ranks #152 out of 470 events in the database.
•At M6.1, this is 0.4 points above the database average of M5.7. Each whole magnitude point represents roughly 32x more energy released.
•The 53.0 km focal depth is classified as intermediate (average: 27 km across all events).
•A USGS significance score of 823 places this among the 265 most impactful events tracked, based on magnitude, felt reports, and damage potential.

Depth

53.0 km

Tsunami

Felt Reports

424

Significance

823

Earthquake Details

Magnitude	M6.1(mww)
Classification	Strong Earthquake
Location	8 km N of San José Poliutla, Mexico
Date & Time	November 15, 2012 18:20:21
Coordinates	18.3460N, 100.3820W
Depth	53.0 km (Intermediate)
Tsunami	No
Felt Reports	424 reports submitted to USGS
CDI (Community Intensity)	5.9
MMI (Modified Mercalli)	5.0
Significance Score	823 / 3,000
Status	reviewed

Magnitude Scale Context

Minor

3-3.9

Light

4-4.9

Moderate

5-5.9

Strong

6-6.9

Major

At M6.1, this is classified as a Strong earthquake. Earthquakes of this size can cause severe damage in populated areas within tens of miles of the epicenter.

Official USGS Page: https://earthquake.usgs.gov/earthquakes/eventpage/usp000jvmk

Frequently Asked Questions

How strong was the 8 km N of San José Poliutla, Mexico earthquake?

The 8 km N of San José Poliutla, Mexico earthquake had a magnitude of 6.1 mww, classified as a "Strong" earthquake on the magnitude scale. Earthquakes of this size can cause serious damage to buildings and infrastructure over a wide area.

Where exactly did this earthquake occur and how deep was it?

This earthquake struck at coordinates 18.3460N, 100.3820W, at a depth of 53.0 km. This intermediate depth can still produce significant shaking at the surface.

Did this earthquake trigger a tsunami warning?

No tsunami warning was issued for this earthquake. Earthquakes below magnitude 6.5 rarely generate dangerous tsunamis, though localized effects are possible in rare cases.

How many people felt this earthquake?

424 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 5.9, indicating moderate shaking felt by most people indoors. The Modified Mercalli Intensity (MMI) was estimated at 5.0.

When did this earthquake happen and how significant was it?

This earthquake occurred on November 15, 2012 at 18:20:21. The USGS assigned it a significance score of 823 out of a possible 3,000, which factors in magnitude, felt reports, and potential impact. This is considered a highly significant seismic event.

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Key Insights

•This M6.1 strong earthquake ranks #152 out of 470 events in the database.

•At M6.1, this is 0.4 points above the database average of M5.7. Each whole magnitude point represents roughly 32x more energy released.

•The 53.0 km focal depth is classified as intermediate (average: 27 km across all events).

•A USGS significance score of 823 places this among the 265 most impactful events tracked, based on magnitude, felt reports, and damage potential.

Earthquake Details

Magnitude

M6.1(mww)

Classification

Strong Earthquake

Location

8 km N of San José Poliutla, Mexico

Date & Time

November 15, 2012 18:20:21

Coordinates

18.3460N, 100.3820W

Depth

53.0 km (Intermediate)

Tsunami

Felt Reports

424 reports submitted to USGS

CDI (Community Intensity)

5.9

MMI (Modified Mercalli)

5.0

Significance Score

823 / 3,000

Status

reviewed