M4.0 earthquake 40 km W of Valparaíso, Chile

Magnitude

4.0 (mwr), light

Local time

Mon, Sep 21, 2015, 2:07 AM GMT-3

UTC

2015-09-21 05:07:35 UTC

Depth

17.1 km (10.6 mi), shallow

Epicenter

33.050° S, 72.060° W

Region

Chile

Tsunami flag

No

Status

Reviewed by a seismologist

Faulting

Reverse (thrust)

Moment magnitude

4.0 Mwr

Nodal plane 1

Strike 170°, dip 86°, rake 62°

Nodal plane 2

Strike 72°, dip 28°, rake 171°

Location uncertainty

About 5.0 km horizontally, 4.9 km in depth

Magnitude uncertainty

±0.06

Depth from

From location

Station coverage gap

75°

Stations used

44

• Valparaíso, ChilePopulation 282,448. Forecast40 kmW
• Santiago, ChilePopulation 4,837,295. Forecast139 kmWNW

After

1. 4.298 km NW of Valparaíso, ChileMon, Sep 21, 2:30 AM GMT-3 · 4019 days ago · 29 km deep · 76 km away
2. 4.792 km NW of Valparaíso, ChileMon, Sep 21, 2:50 AM GMT-3 · 4019 days ago · 10 km deep · 76 km away · felt by 1
3. 4.448 km W of Valparaíso, ChileMon, Sep 21, 6:17 PM GMT-3 · 4018 days ago · 12 km deep · 8 km away · felt by 1
4. 4.488 km WNW of La Ligua, ChileMon, Sep 21, 10:14 PM GMT-3 · 4018 days ago · 16 km deep · 99 km away
5. 4.4Off the coast of Valparaiso, ChileTue, Sep 22, 10:17 AM GMT-3 · 4018 days ago · 16 km deep · 98 km away · felt by 8
6. 4.326 km SSE of Villa Alemana, ChileTue, Sep 22, 10:40 AM GMT-3 · 4018 days ago · 49 km deep · 75 km away · felt by 2
7. 4.1109 km WNW of La Ligua, ChileTue, Sep 22, 1:45 PM GMT-3 · 4017 days ago · 10 km deep · 99 km away
8. 4.063 km WNW of La Ligua, ChileTue, Sep 22, 8:25 PM GMT-3 · 4017 days ago · 16 km deep · 86 km away
9. 4.397 km NW of Valparaíso, ChileWed, Sep 23, 12:06 PM GMT-3 · 4016 days ago · 10 km deep · 78 km away
10. 4.7Off the coast of Valparaiso, ChileThu, Sep 24, 11:39 AM GMT-3 · 4015 days ago · 10 km deep · 86 km away
11. 4.498 km W of La Ligua, ChileThu, Sep 24, 11:59 PM GMT-3 · 4015 days ago · 10 km deep · 85 km away · felt by 1
12. 4.2104 km NW of Valparaíso, ChileFri, Sep 25, 12:19 AM GMT-3 · 4015 days ago · 14 km deep · 87 km away
13. 4.295 km W of La Ligua, ChileFri, Sep 25, 2:22 AM GMT-3 · 4015 days ago · 6 km deep · 85 km away
14. 4.375 km WNW of Valparaíso, ChileSat, Sep 26, 7:46 AM GMT-3 · 4014 days ago · 10 km deep · 37 km away
15. 4.351 km W of Valparaíso, ChileMon, Sep 28, 11:56 PM GMT-3 · 4011 days ago · 19 km deep · 12 km away · felt by 2
16. 4.145 km W of Valparaíso, ChileTue, Sep 29, 10:20 AM GMT-3 · 4011 days ago · 23 km deep · 6 km away · felt by 1
17. 4.6Off the coast of Valparaiso, ChileTue, Sep 29, 10:42 AM GMT-3 · 4011 days ago · 15 km deep · 11 km away · felt by 1
18. 4.553 km WNW of Valparaíso, ChileThu, Oct 1, 11:31 AM GMT-3 · 4008 days ago · 10 km deep · 29 km away
19. 4.148 km WNW of Valparaíso, ChileThu, Oct 1, 1:47 PM GMT-3 · 4008 days ago · 13 km deep · 27 km away
20. 4.336 km SW of San Antonio, ChileFri, Oct 2, 9:20 PM GMT-3 · 4007 days ago · 36 km deep · 84 km away · felt by 1
21. 4.054 km WNW of Valparaíso, ChileSat, Oct 3, 1:26 AM GMT-3 · 4007 days ago · 14 km deep · 27 km away · felt by 1
22. 4.387 km WNW of La Ligua, ChileSat, Oct 3, 4:42 AM GMT-3 · 4007 days ago · 6 km deep · 91 km away
23. 4.272 km WNW of Cartagena, ChileMon, Oct 12, 2:07 PM GMT-3 · 3997 days ago · 20 km deep · 48 km away
24. 4.4102 km WNW of Cartagena, ChileWed, Oct 14, 8:30 AM GMT-3 · 3996 days ago · 10 km deep · 68 km away
25. 4.579 km W of La Ligua, ChileThu, Oct 22, 10:52 PM GMT-3 · 3987 days ago · 10 km deep · 75 km away
26. 4.429 km N of Valparaíso, ChileTue, Oct 27, 3:32 PM GMT-3 · 3982 days ago · 27 km deep · 48 km away
27. 4.181 km WNW of Cartagena, ChileFri, Nov 6, 5:50 PM GMT-3 · 3972 days ago · 17 km deep · 46 km away
28. 4.442 km NNW of Valparaíso, ChileThu, Nov 12, 2:54 AM GMT-3 · 3967 days ago · 19 km deep · 46 km away

Before

1. 4.474 km WNW of La Ligua, ChileMon, Sep 21, 12:17 AM GMT-3 · 4019 days ago · 8 km deep · 87 km away
2. 4.480 km W of La Ligua, ChileSun, Sep 20, 11:37 AM GMT-3 · 4019 days ago · 6 km deep · 77 km away
3. 4.655 km W of La Ligua, ChileSun, Sep 20, 4:10 AM GMT-3 · 4020 days ago · 17 km deep · 64 km away
4. 4.284 km W of La Ligua, ChileSat, Sep 19, 10:21 PM GMT-3 · 4020 days ago · 13 km deep · 77 km away
5. 4.343 km W of Valparaíso, ChileSat, Sep 19, 9:59 PM GMT-3 · 4020 days ago · 25 km deep · 5 km away
6. 4.283 km WNW of La Ligua, ChileSat, Sep 19, 9:48 PM GMT-3 · 4020 days ago · 24 km deep · 88 km away
7. 4.2100 km WNW of La Ligua, ChileSat, Sep 19, 7:10 PM GMT-3 · 4020 days ago · 9 km deep · 96 km away
8. 4.1Off the coast of Valparaiso, ChileSat, Sep 19, 6:27 PM GMT-3 · 4020 days ago · 18 km deep · 68 km away
9. 4.294 km NW of Valparaíso, ChileSat, Sep 19, 5:41 PM GMT-3 · 4020 days ago · 9 km deep · 78 km away
10. 4.283 km NW of Valparaíso, ChileSat, Sep 19, 4:14 PM GMT-3 · 4020 days ago · 16 km deep · 68 km away
11. 4.570 km WNW of La Ligua, ChileSat, Sep 19, 4:09 PM GMT-3 · 4020 days ago · 14 km deep · 82 km away
12. 3.774 km W of La Ligua, ChileSat, Sep 19, 2:44 PM GMT-3 · 4020 days ago · 10 km deep · 74 km away
13. 4.298 km NW of Valparaíso, ChileSat, Sep 19, 1:21 PM GMT-3 · 4020 days ago · 10 km deep · 75 km away
14. 4.478 km NNW of Valparaíso, ChileSat, Sep 19, 1:10 PM GMT-3 · 4020 days ago · 10 km deep · 68 km away
15. 4.280 km WNW of La Ligua, ChileSat, Sep 19, 12:24 PM GMT-3 · 4020 days ago · 10 km deep · 84 km away
16. 4.270 km WNW of La Ligua, ChileSat, Sep 19, 10:58 AM GMT-3 · 4020 days ago · 10 km deep · 87 km away
17. 4.377 km NNW of Valparaíso, ChileSat, Sep 19, 10:36 AM GMT-3 · 4021 days ago · 35 km deep · 67 km away
18. 3.758 km W of La Ligua, ChileSat, Sep 19, 10:35 AM GMT-3 · 4021 days ago · 35 km deep · 75 km away
19. 4.956 km W of La Ligua, ChileSat, Sep 19, 10:01 AM GMT-3 · 4021 days ago · 32 km deep · 71 km away
20. 6.279 km W of La Ligua, ChileSat, Sep 19, 9:52 AM GMT-3 · 4021 days ago · 18 km deep · 80 km away · felt by 49

From the USGS Earthquake Hazards Program and its partner networks, event us20003mc7. Read Tue, Sep 22, 2026, 1:24 AM UTC.