M5.1

M 5.1 - 155 km N of Arecibo, Puerto Rico

Moderate Earthquake · February 19, 2026 · 155 km N of Arecibo, Puerto Rico

Key Insights

•This M5.1 moderate earthquake ranks #319 out of 470 events in the database.
•At M5.1, this is 0.6 points below the database average of M5.7.
•The 34.0 km focal depth is classified as intermediate (average: 27 km across all events).
•This earthquake triggered a tsunami advisory — only 174 of 470 events (37%) in our database generated tsunami warnings.
•42 people reported feeling this earthquake via the USGS "Did You Feel It?" system, with a significance score of 418.

Depth

34.0 km

Tsunami

Yes

Felt Reports

Significance

418

Earthquake Details

Magnitude	M5.1(ml)
Classification	Moderate Earthquake
Location	155 km N of Arecibo, Puerto Rico
Date & Time	February 19, 2026 23:18:06
Coordinates	19.8711N, 66.5455W
Depth	34.0 km (Intermediate)
Tsunami	Yes — Advisory/Warning Issued
Felt Reports	42 reports submitted to USGS
CDI (Community Intensity)	4.3
Significance Score	418 / 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 M5.1, this is classified as a Moderate earthquake. Earthquakes of this size can cause moderate damage to vulnerable structures and are widely felt.

Official USGS Page: https://earthquake.usgs.gov/earthquakes/eventpage/pr2026050001

Frequently Asked Questions

How strong was the 155 km N of Arecibo, Puerto Rico earthquake?

The 155 km N of Arecibo, Puerto Rico earthquake had a magnitude of 5.1 ml, classified as a "Moderate" earthquake on the magnitude scale. Earthquakes of this magnitude can cause damage to poorly constructed buildings and are felt widely.

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

This earthquake struck at coordinates 19.8711N, 66.5455W, at a depth of 34.0 km. This intermediate depth can still produce significant shaking at the surface.

Did this earthquake trigger a tsunami warning?

Yes, a tsunami advisory or warning was associated with this earthquake. Coastal residents in affected areas should always follow local emergency management guidance during tsunami events. Even small tsunamis can produce dangerous currents.

How many people felt this earthquake?

42 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 4.3, indicating moderate shaking felt by most people indoors.

When did this earthquake happen and how significant was it?

This earthquake occurred on February 19, 2026 at 23:18:06. The USGS assigned it a significance score of 418 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 M5.1 moderate earthquake ranks #319 out of 470 events in the database.

•At M5.1, this is 0.6 points below the database average of M5.7.

•The 34.0 km focal depth is classified as intermediate (average: 27 km across all events).

•This earthquake triggered a tsunami advisory — only 174 of 470 events (37%) in our database generated tsunami warnings.

•42 people reported feeling this earthquake via the USGS "Did You Feel It?" system, with a significance score of 418.

Earthquake Details

Magnitude

M5.1(ml)

Classification

Moderate Earthquake

Location

155 km N of Arecibo, Puerto Rico

Date & Time

February 19, 2026 23:18:06

Coordinates

19.8711N, 66.5455W

Depth

34.0 km (Intermediate)

Tsunami

Yes — Advisory/Warning Issued

Felt Reports

42 reports submitted to USGS

CDI (Community Intensity)

4.3

Significance Score

418 / 3,000

Status

reviewed