M6.3

M 6.3 - 266 km SW of Yakutat, Alaska

Strong Earthquake · November 13, 2012 · 266 km SW of Yakutat, Alaska

Key Insights

•This M6.3 strong earthquake ranks #104 out of 470 events in the database.
•At M6.3, this is 0.6 points above the database average of M5.7. Each whole magnitude point represents roughly 32x more energy released.
•At 9.0 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 613 places this among the 265 most impactful events tracked, based on magnitude, felt reports, and damage potential.

Depth

9.0 km

Tsunami

Felt Reports

Significance

613

Earthquake Details

Magnitude	M6.3(mww)
Classification	Strong Earthquake
Location	266 km SW of Yakutat, Alaska
Date & Time	November 13, 2012 05:42:14
Coordinates	57.7920N, 142.8550W
Depth	9.0 km (Shallow)
Tsunami	No
Felt Reports	9 reports submitted to USGS
CDI (Community Intensity)	2.2
Significance Score	613 / 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 M6.3, 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/usp000jvfa

Frequently Asked Questions

How strong was the 266 km SW of Yakutat, Alaska earthquake?

The 266 km SW of Yakutat, Alaska earthquake had a magnitude of 6.3 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 57.7920N, 142.8550W, at a depth of 9.0 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?

9 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 2.2, indicating light shaking noticed by some people.

When did this earthquake happen and how significant was it?

This earthquake occurred on November 13, 2012 at 05:42:14. The USGS assigned it a significance score of 613 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 M6.3 strong earthquake ranks #104 out of 470 events in the database.

•At M6.3, this is 0.6 points above the database average of M5.7. Each whole magnitude point represents roughly 32x more energy released.

•At 9.0 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 613 places this among the 265 most impactful events tracked, based on magnitude, felt reports, and damage potential.

Frequently Asked Questions

How strong was the 266 km SW of Yakutat, Alaska earthquake?

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

This earthquake struck at coordinates 57.7920N, 142.8550W, at a depth of 9.0 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?

9 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 2.2, indicating light shaking noticed by some people.

When did this earthquake happen and how significant was it?