M1.8 earthquake 1km NNE of Caltech, Pasadena, CA

Magnitude

1.8 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, Dec 17, 1979, 11:35 AM PST

UTC

1979-12-17 19:35:06 UTC

Depth

16.1 km (10.0 mi), shallow

Epicenter

34.146° N, 118.123° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 0.7 km in depth

Magnitude uncertainty

±0.06

Depth from

From location

Station coverage gap

113°

Stations used

17

• Pasadena, CaliforniaPopulation 142,250. Forecast2 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast15 kmNE

After

1. 2.512km S of Malibu Beach, CAMon, Dec 17, 7:18 PM PST · 17092 days ago · 10 km deep · 55 km away
2. 1.82km WSW of Huntington Beach, CAMon, Dec 17, 8:43 PM PST · 17092 days ago · 3 km deep · 52 km away
3. 2.04km S of Mentone, CAMon, Dec 17, 9:12 PM PST · 17092 days ago · 5 km deep · 92 km away
4. 2.24km SSE of Mentone, CATue, Dec 18, 12:54 AM PST · 17091 days ago · 6 km deep · 93 km away
5. 2.34km S of Mentone, CATue, Dec 18, 3:59 AM PST · 17091 days ago · 5 km deep · 92 km away
6. 2.84km S of Mentone, CATue, Dec 18, 3:59 AM PST · 17091 days ago · 6 km deep · 92 km away
7. 3.04km S of Mentone, CATue, Dec 18, 4:00 AM PST · 17091 days ago · 6 km deep · 92 km away
8. 1.54km SSE of Mentone, CATue, Dec 18, 4:30 AM PST · 17091 days ago · 6 km deep · 93 km away
9. 3.35km S of Mentone, CATue, Dec 18, 7:37 AM PST · 17091 days ago · 8 km deep · 92 km away
10. 2.24km S of Mentone, CATue, Dec 18, 8:31 AM PST · 17091 days ago · 6 km deep · 92 km away
11. 1.64km S of Mentone, CATue, Dec 18, 10:24 AM PST · 17091 days ago · 6 km deep · 92 km away
12. 1.53km S of Mentone, CATue, Dec 18, 11:09 AM PST · 17091 days ago · 6 km deep · 92 km away
13. 1.94km S of Mentone, CATue, Dec 18, 1:45 PM PST · 17091 days ago · 5 km deep · 92 km away
14. 1.84km SSE of Mentone, CATue, Dec 18, 2:03 PM PST · 17091 days ago · 6 km deep · 93 km away
15. 2.04km S of Mentone, CAWed, Dec 19, 5:37 AM PST · 17090 days ago · 6 km deep · 92 km away
16. 2.24km S of Mentone, CAWed, Dec 19, 5:42 AM PST · 17090 days ago · 5 km deep · 93 km away
17. 1.54km S of Mentone, CAWed, Dec 19, 10:08 AM PST · 17090 days ago · 6 km deep · 92 km away
18. 1.84km S of Mentone, CAWed, Dec 19, 10:10 AM PST · 17090 days ago · 6 km deep · 92 km away
19. 2.84km S of Mentone, CAWed, Dec 19, 10:11 AM PST · 17090 days ago · 5 km deep · 92 km away
20. 1.54km S of Mentone, CAWed, Dec 19, 10:54 AM PST · 17090 days ago · 6 km deep · 92 km away
21. 2.44km S of Mentone, CAWed, Dec 19, 3:03 PM PST · 17090 days ago · 6 km deep · 93 km away
22. 1.54km S of Mentone, CAWed, Dec 19, 4:10 PM PST · 17090 days ago · 5 km deep · 92 km away
23. 1.54km S of Mentone, CAThu, Dec 20, 6:47 AM PST · 17089 days ago · 6 km deep · 92 km away
24. 1.923km S of Frazier Park, CAThu, Dec 20, 8:33 AM PST · 17089 days ago · 3 km deep · 95 km away
25. 3.13km NE of Lytle Creek, CAThu, Dec 20, 12:31 PM PST · 17089 days ago · 9 km deep · 61 km away
26. 2.36km NW of Mira Loma, CAMon, Dec 24, 4:27 AM PST · 17085 days ago · 8 km deep · 54 km away
27. 2.26km NNW of Mira Loma, CAMon, Dec 24, 9:00 AM PST · 17085 days ago · 9 km deep · 54 km away
28. 1.616km N of Piru, CATue, Dec 25, 1:07 AM PST · 17084 days ago · 6 km deep · 79 km away
29. 2.36km NW of Mira Loma, CATue, Dec 25, 1:57 AM PST · 17084 days ago · 7 km deep · 53 km away
30. 2.17km ENE of Oxnard, CAThu, Dec 27, 11:56 AM PST · 17082 days ago · 6 km deep · 92 km away
31. 1.94km SSE of Lytle Creek, CAFri, Dec 28, 6:00 AM PST · 17081 days ago · 8 km deep · 60 km away
32. 2.125km SE of Boron, CASun, Dec 30, 5:43 PM PST · 17079 days ago · 4 km deep · 98 km away
33. 1.832km S of Malibu, CAMon, Dec 31, 4:05 PM PST · 17078 days ago · 6 km deep · 82 km away
34. 2.431km S of Malibu, CAMon, Dec 31, 4:05 PM PST · 17078 days ago · 0 km deep · 79 km away
35. 1.712km N of Sunland, CATue, Jan 1, 1:05 AM PST · 17077 days ago · 5 km deep · 28 km away
36. 1.87km E of Santa Clarita, CATue, Jan 1, 1:35 AM PST · 17077 days ago · 10 km deep · 41 km away
37. 1.74km S of Mentone, CATue, Jan 1, 2:00 AM PST · 17077 days ago · 7 km deep · 92 km away
38. 2.04km WSW of Florence-Graham, CAWed, Jan 2, 12:33 AM PST · 17076 days ago · 24 km deep · 26 km away
39. 2.05km NNW of Sunland, CAThu, Jan 3, 3:25 PM PST · 17075 days ago · 6 km deep · 25 km away
40. 1.61km NE of Yorba Linda, CASat, Jan 5, 5:40 AM PST · 17073 days ago · 0 km deep · 40 km away
41. 1.78km E of Santa Clarita, CASat, Jan 5, 10:37 PM PST · 17072 days ago · 7 km deep · 40 km away
42. 2.115km SSW of Dana Point, CAMon, Jan 7, 8:32 PM PST · 17071 days ago · 6 km deep · 94 km away
43. 2.31km ENE of Santa Monica, CAMon, Jan 7, 9:43 PM PST · 17070 days ago · 5 km deep · 36 km away
44. 3.26km WNW of Mira Loma, CATue, Jan 8, 11:10 AM PST · 17070 days ago · 10 km deep · 53 km away
45. 2.06km NW of Mira Loma, CATue, Jan 8, 3:25 PM PST · 17070 days ago · 10 km deep · 53 km away
46. 1.618km S of Malibu Beach, CAFri, Jan 11, 3:24 PM PST · 17067 days ago · 6 km deep · 61 km away
47. 2.13km NE of Lytle Creek, CASat, Jan 12, 2:46 PM PST · 17066 days ago · 12 km deep · 61 km away
48. 1.627km SSE of Port Hueneme, CASun, Jan 13, 1:20 PM PST · 17065 days ago · 6 km deep · 96 km away
49. 1.74km E of Highland, CAMon, Jan 14, 3:23 PM PST · 17064 days ago · 8 km deep · 88 km away
50. 2.06km NE of Villa Park, CATue, Jan 15, 4:32 PM PST · 17063 days ago · 8 km deep · 47 km away
51. 1.94km SSE of Malibu, CAWed, Jan 16, 2:28 AM PST · 17062 days ago · 14 km deep · 64 km away
52. 2.33km E of Carson, CAThu, Jan 17, 1:31 AM PST · 17061 days ago · 0 km deep · 37 km away
53. 1.76km W of Signal Hill, CAThu, Jan 17, 2:12 AM PST · 17061 days ago · 6 km deep · 39 km away
54. 3.08km SSE of Chino Hills, CAFri, Jan 18, 1:09 AM PST · 17060 days ago · 7 km deep · 44 km away
55. 1.511km S of Malibu Beach, CAFri, Jan 18, 3:27 PM PST · 17060 days ago · 10 km deep · 56 km away
56. 2.312km NNE of Trabuco Canyon, CASun, Jan 20, 12:54 PM PST · 17058 days ago · 10 km deep · 71 km away
57. 2.12km NNE of Huntington Beach, CASun, Jan 20, 10:30 PM PST · 17057 days ago · 6 km deep · 50 km away
58. 1.74km SE of Westminster, CASun, Jan 20, 10:34 PM PST · 17057 days ago · 4 km deep · 48 km away
59. 1.63km NNW of Fontana, CATue, Jan 22, 12:37 AM PST · 17056 days ago · 11 km deep · 60 km away
60. 2.03km NNE of Moreno Valley, CAWed, Jan 23, 4:20 AM PST · 17055 days ago · 13 km deep · 86 km away

The first 60 of 87.

Before

1. 2.38km S of Malibu Beach, CAMon, Dec 17, 10:31 AM PST · 17092 days ago · 10 km deep · 55 km away
2. 1.71km S of Downey, CAMon, Dec 17, 4:41 AM PST · 17092 days ago · 11 km deep · 24 km away
3. 3.19km SSE of Malibu Beach, CASat, Dec 15, 10:00 PM PST · 17093 days ago · 9 km deep · 54 km away
4. 2.116km W of Malibu, CASat, Dec 15, 6:44 PM PST · 17094 days ago · 11 km deep · 81 km away
5. 1.87km NE of Running Springs, CAFri, Dec 14, 12:15 PM PST · 17095 days ago · 3 km deep · 99 km away
6. 1.615km NE of Lancaster, CAThu, Dec 13, 11:39 AM PST · 17096 days ago · 3 km deep · 70 km away
7. 2.28km S of Malibu Beach, CAThu, Dec 13, 12:20 AM PST · 17096 days ago · 5 km deep · 56 km away
8. 1.54km E of Lake Arrowhead, CAWed, Dec 12, 11:05 PM PST · 17096 days ago · 4 km deep · 91 km away
9. 1.91km NW of Loma Linda, CAWed, Dec 12, 8:20 AM PST · 17097 days ago · 15 km deep · 79 km away
10. 1.54km ENE of Lake Arrowhead, CAWed, Dec 12, 3:55 AM PST · 17097 days ago · 3 km deep · 91 km away
11. 2.11km NE of Loma Linda, CAWed, Dec 12, 2:55 AM PST · 17097 days ago · 15 km deep · 81 km away
12. 2.55km SW of Calimesa, CATue, Dec 11, 12:08 AM PST · 17098 days ago · 11 km deep · 98 km away
13. 2.214km SE of Malibu, CAMon, Dec 10, 10:53 PM PST · 17098 days ago · 11 km deep · 61 km away
14. 2.215km WSW of Malibu, CAMon, Dec 10, 2:09 AM PST · 17099 days ago · 13 km deep · 81 km away
15. 2.110km SW of Valencia, CAMon, Dec 10, 1:58 AM PST · 17099 days ago · 2 km deep · 55 km away
16. 2.411km SSW of Agua Dulce, CASun, Dec 9, 12:35 AM PST · 17100 days ago · 10 km deep · 38 km away
17. 1.65km NNE of Running Springs, CASat, Dec 8, 5:53 PM PST · 17101 days ago · 3 km deep · 96 km away
18. 1.516km S of Camarillo, CAFri, Dec 7, 8:35 AM PST · 17102 days ago · 10 km deep · 85 km away
19. 2.15km SE of Ontario, CAThu, Dec 6, 8:42 PM PST · 17103 days ago · 5 km deep · 51 km away
20. 1.74km NNW of Redlands, CAThu, Dec 6, 10:30 AM PST · 17103 days ago · 4 km deep · 85 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3354614. Read Sat, Oct 3, 2026, 4:49 PM UTC.