Under land 169 kilometer from San Miguel de Tucumán in Argentina, a shallow and significant M5.1 earthquake occurred in the morning of Saturday September 5th, 2026.
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Earthquake Summary
The earthquake struck on land in Argentina, 169 kilometer (105 mi) northwest of San Miguel de Tucumán in Tucuman. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Sep 5, 2026 08:37 (Tucuman Time) - Sep 5, 2026 11:37 Universal Time. |
|---|---|
| Location: | 169 km NW of San Miguel de Tucumán, Tucuman, Argentina. Coordinates 26°6'28"S 66°43'3"W. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.1 Detected by 26 stations. Maximum Error Range ±0.061 . |
| Depth: | 10 km (6 mi) A very shallow depth. |
| Tsunami Risk: | Tsunami very unlikely While this was a shallow earthquake, it appears to have occurred under land with a magnitude not strong enough to cause tsunami's. Always stay cautious - More info here. |
Nearby towns and cities
This earthquake may have been felt in Argentina . Located 160 kilometer (99 mi) northwest of the epicenter of this earthquake, Yerba Buena (Tucuman, Argentina) is the nearest significant population center.
Major cities near this earthquake: San Miguel de Tucumán is located 169 km to the south-east. Salta is located 197 km to the north-east. San Salvador de Jujuy is located 256 km to the north-east.
An overview of nearby towns and cities is available in the overview below.
Overview of nearby places
| Distance | Place |
|---|---|
| 160 km (99 mi) SE from epicenter |
Yerba Buena Tucuman, Argentina. |
| 161 km (100 mi) SE from epicenter |
Tafí Viejo Tucuman, Argentina. |
| 168 km (104 mi) SE from epicenter |
Famaillá Tucuman, Argentina. |
| 169 km (105 mi) SE from epicenter |
San Miguel de Tucumán Tucuman, Argentina. |
| 169 km (105 mi) SE from epicenter |
Monteros Tucuman, Argentina. |
| 174 km (108 mi) SE from epicenter |
Bella Vista Tucuman, Argentina. |
| 176 km (109 mi) SE from epicenter |
Alderetes Tucuman, Argentina. |
| 184 km (114 mi) SE from epicenter |
Aguilares Tucuman, Argentina. |
| 197 km (122 mi) NE from epicenter |
Salta Salta, Argentina. |
| 240 km (149 mi) SE from epicenter |
Termas de Río Hondo Santiago del Estero, Argentina. |
| 256 km (159 mi) NE from epicenter |
San Salvador de Jujuy Jujuy, Argentina. |
| 256 km (159 mi) NE from epicenter |
Palpalá Jujuy, Argentina. |
| 278 km (173 mi) S from epicenter |
Catamarca Catamarca, Argentina. |
| 280 km (174 mi) NE from epicenter |
San Pedro de Jujuy Jujuy, Argentina. |
| 282 km (175 mi) NE from epicenter |
Joaquín V. González Salta, Argentina. |
Shaking reported by 1 person
People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 1 person has reported shaking in one place in Argentina.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.
Places with most reports:
- Tucumán, Tucumán, Argentina: 1 person.
Aftershocks detected
After this earthquake struck, 1 smaller aftershock occurred. At a distance of 23 km (14 mi) north of this earthquake, an aftershock struck 5 hrs later. It measured a magnitude of 3.4
In the days before this main shock, 1 smaller foreshock was detected. A 3.1 magnitude earthquake hit 2 days earlier nearby.
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Foreshock | M 3.1 |
2 days earlier Sep 3, 2026 00:40 (Tucuman Time) | 41 km (26 mi) NE from Main Shock. |
| Main Shock This Earthquake |
M 5.1 |
Sep 5, 2026 08:37 (Tucuman Time) | - |
| Aftershock | M 3.4 |
5 hrs later Sep 5, 2026 13:37 (Tucuman Time) | 23 km (14 mi) N from Main Shock. |
More earthquakes coming?
The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.
The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk
Read: How to Stay Safe during an Earthquake (cdc.gov).Earthquakes like this happen often in the region
Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since July 24th, 2026, when a 5.3 magnitude earthquake hit 246 km (153 mi) further north. An even stronger magnitude 6.8 earthquake struck on May 10th, 2022.
In total, 31 earthquakes with a magnitude of 5.1 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 4 months.
Tsunami very unlikely
While MAG-6.5+ earthquakes may cause tsunami's, it appears that the epicenter of this earthquake hit under land. In addition, the reported depth is deeper than 100km, making the risk of a tsunami even less likely. However always stay cautious and monitor advice from local authorities.
Tsunami Risk Factors
| Factor | Under Sea? | MAG-6.5 or stronger? | Shallow depth? |
|---|---|---|---|
| Explanation | Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. | Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's. |
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor. |
| This Earthquake | Not this earthquake. This earthquake appears to have struck on land far from any coast. |
Not this earthquake. This earthquake had a magnitude of 5.1. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 10 km (6 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 06/09/26 10:48 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.
- US Geographic Society (USGS): Earthquake us7000tej2
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20260905_0000122
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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