How strong was the 7 km SW of Helio García Alfaro, Mexico earthquake?
The 7 km SW of Helio García Alfaro, Mexico earthquake had a magnitude of 6.6 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 17.2080N, 94.3380W, at a depth of 166.2 km. Deep earthquakes are generally felt over a wider area but cause less intense shaking at the surface.
Did this earthquake trigger a tsunami warning?
No tsunami warning was issued for this earthquake. While the magnitude was significant, the location and depth characteristics did not warrant a tsunami advisory.
How many people felt this earthquake?
350 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 6.5, indicating strong to very strong shaking with potential for damage. The Modified Mercalli Intensity (MMI) was estimated at 5.6.
When did this earthquake happen and how significant was it?
This earthquake occurred on April 7, 2011 at 22:11:22. The USGS assigned it a significance score of 898 out of a possible 3,000, which factors in magnitude, felt reports, and potential impact. This is considered a highly significant seismic event.