M4.7 earthquake 71 km E of Caucete, Argentina

Magnitude

4.7 (mb), light

Local time

Fri, Dec 23, 1977, 12:04 AM GMT-3

UTC

1977-12-23 03:04:03 UTC

Depth

33.0 km (20.5 mi), shallow

Epicenter

31.611° S, 67.530° W

Region

Argentina

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

OPERATOR_ASSIGNED

Stations used

13

• Caucete, ArgentinaPopulation 32,454. Forecast71 kmE
• San Juan, ArgentinaPopulation 109,123. Forecast95 kmE
• Córdoba, ArgentinaPopulation 2,106,734. Forecast318 kmW

After

1. 4.367 km S of San Agustín de Valle Fértil, ArgentinaFri, Dec 23, 7:25 AM GMT-3 · 17805 days ago · 33 km deep · 41 km away
2. 5.158 km SSW of San Agustín de Valle Fértil, ArgentinaSun, Jan 1, 7:50 AM GMT-3 · 17796 days ago · 35 km deep · 58 km away
3. 5.244 km ENE of Caucete, ArgentinaMon, Jan 2, 10:10 PM GMT-3 · 17794 days ago · 40 km deep · 29 km away
4. 4.966 km SSW of San Agustín de Valle Fértil, ArgentinaTue, Jan 3, 3:31 AM GMT-3 · 17794 days ago · 33 km deep · 55 km away
5. 4.547 km ENE of Caucete, ArgentinaSun, Jan 15, 9:17 PM GMT-3 · 17781 days ago · 8 km deep · 26 km away
6. 5.856 km NE of Caucete, ArgentinaTue, Jan 17, 8:33 AM GMT-3 · 17780 days ago · 24 km deep · 48 km away
7. 4.630 km SE of Caucete, ArgentinaSun, Jan 22, 9:08 AM GMT-3 · 17775 days ago · 35 km deep · 51 km away

Before

1. 5.351 km SSW of San Agustín de Valle Fértil, ArgentinaThu, Dec 22, 11:25 PM GMT-3 · 17805 days ago · 33 km deep · 59 km away
2. 5.766 km ENE of Caucete, ArgentinaWed, Dec 21, 12:47 AM GMT-3 · 17807 days ago · 33 km deep · 12 km away
3. 4.779 km ENE of Caucete, ArgentinaTue, Dec 20, 6:12 PM GMT-3 · 17808 days ago · 33 km deep · 23 km away
4. 5.480 km E of Caucete, ArgentinaTue, Dec 13, 7:06 AM GMT-3 · 17815 days ago · 33 km deep · 10 km away
5. 4.963 km S of San Agustín de Valle Fértil, ArgentinaMon, Dec 12, 1:02 PM GMT-3 · 17816 days ago · 46 km deep · 45 km away
6. 5.361 km SSW of San Agustín de Valle Fértil, ArgentinaSat, Dec 10, 11:19 AM GMT-3 · 17818 days ago · 27 km deep · 53 km away
7. 5.340 km NE of Caucete, ArgentinaSat, Dec 10, 5:36 AM GMT-3 · 17818 days ago · 33 km deep · 45 km away
8. 5.663 km SSW of San Agustín de Valle Fértil, ArgentinaSat, Dec 10, 4:11 AM GMT-3 · 17818 days ago · 39 km deep · 48 km away
9. 5.257 km ENE of Caucete, ArgentinaFri, Dec 9, 6:44 PM GMT-3 · 17819 days ago · 37 km deep · 18 km away
10. 5.264 km ENE of San Martín, ArgentinaWed, Dec 7, 12:22 AM GMT-3 · 17821 days ago · 33 km deep · 60 km away
11. 5.271 km NE of Caucete, ArgentinaTue, Dec 6, 3:27 PM GMT-3 · 17822 days ago · 33 km deep · 42 km away
12. 5.963 km SSW of San Agustín de Valle Fértil, ArgentinaTue, Dec 6, 2:05 PM GMT-3 · 17822 days ago · 19 km deep · 52 km away
13. 4.966 km ENE of Caucete, ArgentinaTue, Dec 6, 9:41 AM GMT-3 · 17822 days ago · 33 km deep · 29 km away
14. 5.652 km SSW of San Agustín de Valle Fértil, ArgentinaTue, Dec 6, 5:41 AM GMT-3 · 17822 days ago · 35 km deep · 64 km away
15. 5.643 km SSW of San Agustín de Valle Fértil, ArgentinaMon, Dec 5, 12:43 PM GMT-3 · 17823 days ago · 32 km deep · 73 km away
16. 5.082 km E of Caucete, ArgentinaSun, Dec 4, 11:06 AM GMT-3 · 17824 days ago · 40 km deep · 17 km away
17. 4.578 km ENE of Caucete, ArgentinaSat, Dec 3, 8:35 PM GMT-3 · 17824 days ago · 33 km deep · 23 km away
18. 4.869 km E of Caucete, ArgentinaSat, Dec 3, 12:04 PM GMT-3 · 17825 days ago · 33 km deep · 8 km away
19. 4.656 km S of San Agustín de Valle Fértil, ArgentinaFri, Dec 2, 11:34 PM GMT-3 · 17825 days ago · 33 km deep · 52 km away
20. 4.896 km E of Caucete, ArgentinaThu, Dec 1, 3:39 AM GMT-3 · 17827 days ago · 33 km deep · 28 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0000s6x. Read Tue, Sep 22, 2026, 9:45 AM UTC.