M6.0

M 6.0 - 73 km SW of Topolobampo, Mexico

Strong Earthquake · July 27, 2011 · 73 km SW of Topolobampo, Mexico

Key Insights

•This M6.0 strong earthquake ranks #191 out of 470 events in the database.
•At M6.0, this is 0.3 points above the database average of M5.7. Each whole magnitude point represents roughly 32x more energy released.
•At 12.0 km depth, this is classified as a shallow earthquake. Shallow quakes typically cause stronger ground shaking and more damage than deeper events (avg depth: 27 km).
•A USGS significance score of 561 places this among the 265 most impactful events tracked, based on magnitude, felt reports, and damage potential.

Depth

12.0 km

Tsunami

Felt Reports

Significance

561

Earthquake Details

Magnitude	M6.0(mww)
Classification	Strong Earthquake
Location	73 km SW of Topolobampo, Mexico
Date & Time	July 27, 2011 02:44:20
Coordinates	25.1010N, 109.5250W
Depth	12.0 km (Shallow)
Tsunami	No
Felt Reports	18 reports submitted to USGS
CDI (Community Intensity)	3.7
Significance Score	561 / 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 M6.0, 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/usp000j5hr

Frequently Asked Questions

How strong was the 73 km SW of Topolobampo, Mexico earthquake?

The 73 km SW of Topolobampo, Mexico earthquake had a magnitude of 6 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 25.1010N, 109.5250W, at a depth of 12.0 km. Shallow earthquakes (under 20 km) tend to cause more surface damage than deeper events.

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?

18 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 3.7, indicating light shaking noticed by some people.

When did this earthquake happen and how significant was it?

This earthquake occurred on July 27, 2011 at 02:44:20. The USGS assigned it a significance score of 561 out of a possible 3,000, which factors in magnitude, felt reports, and potential impact. This is a moderately significant seismic event.

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Key Insights

•This M6.0 strong earthquake ranks #191 out of 470 events in the database.

•At M6.0, this is 0.3 points above the database average of M5.7. Each whole magnitude point represents roughly 32x more energy released.

•At 12.0 km depth, this is classified as a shallow earthquake. Shallow quakes typically cause stronger ground shaking and more damage than deeper events (avg depth: 27 km).

•A USGS significance score of 561 places this among the 265 most impactful events tracked, based on magnitude, felt reports, and damage potential.

Frequently Asked Questions

How strong was the 73 km SW of Topolobampo, Mexico earthquake?

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

This earthquake struck at coordinates 25.1010N, 109.5250W, at a depth of 12.0 km. Shallow earthquakes (under 20 km) tend to cause more surface damage than deeper events.

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?

18 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 3.7, indicating light shaking noticed by some people.

When did this earthquake happen and how significant was it?