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Strong mag. 5.7 earthquake - 15 mi northeast of San Jose, Santa Clara County, California, USA, on Monday, March 31, 1986 at 11:55 GMT

Strong mag. 5.7 earthquake - 15 mi northeast of San Jose, Santa Clara County, California, USA, on Monday, March 31, 1986 at 11:55 GMT Strong mag. 5.7 earthquake - 15 mi northeast of San Jose, Santa Clara County, California, USA, on Monday, March 31, 1986 at 11:55 GMT

Strong magnitude 5.7 earthquake at 9 km depth

Earthquake details

Date & timeMar 31, 1986 11:55:39 UTC
Local time at epicenter
StatusConfirmed
Magnitude5.7
Depth8.5 km
Epicenter latitude / longitude37.47917°N / 121.68667°W (Santa Clara, California, United States)
Antipode37.479°S / 58.313°E
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoClear Lake (191 km / 119 mi)
Nearby towns and cities16 km (10 mi) NE of East Foothills (pop: 8,270) | Show on map | Quakes nearby
20 km (13 mi) ENE of Milpitas (pop: 77,600) | Show on map | Quakes nearby
24 km (15 mi) SSE of Livermore (pop: 88,100) | Show on map | Quakes nearby
24 km (15 mi) NE of San Jose (pop: 1,026,900) | Show on map | Quakes nearby
26 km (16 mi) SE of Pleasanton (pop: 79,500) | Show on map | Quakes nearby
28 km (17 mi) ENE of Santa Clara (pop: 126,200) | Show on map | Quakes nearby
28 km (17 mi) ESE of Fremont (pop: 232,200) | Show on map | Quakes nearby
33 km (21 mi) ENE of seonibeil (pop: 151,800) | Show on map | Quakes nearby
72 km (45 mi) ESE of San Francisco (pop: 864,800) | Show on map | Quakes nearby
124 km (77 mi) S of Sacramento (pop: 490,700) | Show on map | Quakes nearby
Estimated seismic energy released2.2 x 1013 joules (6.22 gigawatt hours, equivalent to 5351 tons of TNT or 0.3 atomic bombs!) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
5.78.5 kmNorthern California (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Aftershocks

[More info]

Recorded aftershocks, latest first (197 quakes)

Date and timeMag
Depth
LocationDetails
May 29, 1986 15:54
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 28, 1986 15:48
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 26, 1986 19:56
36 years ago
2.9

2.5 km
4 mi NE of Morgan Hill, Santa Clara County, California, USAMore
May 26, 1986 18:16
36 years ago
2.1

8.8 km
Northern California (USA)More
May 25, 1986 17:20
36 years ago
2.0

2.4 km
Northern California (USA)More
May 25, 1986 16:52
36 years ago
2.6

2.9 km
Northern California (USA)More
May 25, 1986 16:52
36 years ago
2.9

2.4 km
4 mi NE of Morgan Hill, Santa Clara County, California, USAMore
May 25, 1986 16:48
36 years ago
2.5

2.5 km
Northern California (USA)More
May 25, 1986 16:48
36 years ago
2.8

2.1 km
3.9 mi NE of Morgan Hill, Santa Clara County, California, USAMore
May 25, 1986 10:54
36 years ago
2.3

0.9 km
Northern California (USA)More
May 25, 1986 00:34
36 years ago
2.9

8.4 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
May 24, 1986 17:09
36 years ago
2.1

6.4 km
Northern California (USA)More
May 24, 1986 14:06
36 years ago
2.1

3.3 km
Northern California (USA)More
May 23, 1986 16:06
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 23, 1986 10:36
36 years ago
2.0

7 km
Northern California (USA)More
May 21, 1986 17:06
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 19, 1986 23:36
36 years ago
2.8

7.1 km
Station Island, 10.5 mi NE of San Jose, Santa Clara County, California, USAMore
May 18, 1986 20:06
36 years ago
2.1

7.2 km
Northern California (USA)More
May 18, 1986 01:34
36 years ago
2.1

6.9 km
Northern California (USA)More
May 17, 1986 17:11
36 years ago
2.5

6.2 km
Northern California (USA)More
May 16, 1986 21:09
36 years ago
2.3

5.9 km
Northern California (USA)More
May 15, 1986 16:54
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 15, 1986 16:41
36 years ago
2.3

6.3 km
Northern California (USA)More
May 15, 1986 08:32
36 years ago
3.3

8.4 km
Alameda County, 14 mi NE of San Jose, Santa Clara County, California, USAMore
May 14, 1986 18:35
36 years ago
2.3

7.2 km
Northern California (USA)More
May 14, 1986 18:14
36 years ago
2.1

-0.3 km
San Francisco Bay Area, California (USA)More
May 12, 1986 09:17
36 years ago
3.1

7.3 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
May 12, 1986 07:02
36 years ago
2.3

7.8 km
Northern California (USA)More
May 12, 1986 03:26
36 years ago
2.6

5 km
San Francisco Bay Area, California (USA)More
May 9, 1986 23:35
36 years ago
2.6

8.7 km
San Francisco Bay Area, California (USA)More
May 9, 1986 23:14
36 years ago
2.2

5 km
San Francisco Bay Area, California (USA)More
May 9, 1986 15:40
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 9, 1986 06:55
36 years ago
2.1

6.8 km
Northern California (USA)More
May 8, 1986 18:30
36 years ago
2.1

-0.3 km
San Francisco Bay Area, California (USA)More
May 7, 1986 23:24
36 years ago
2.5

7.6 km
Northern California (USA)More
May 7, 1986 19:29
36 years ago
2.0

5.3 km
Northern California (USA)More
May 4, 1986 11:29
36 years ago
2.5

8.5 km
Northern California (USA)More
May 4, 1986 07:25
36 years ago
2.4

2.9 km
Northern California (USA)More
May 3, 1986 22:01
36 years ago
2.4

6.9 km
Northern California (USA)More
May 3, 1986 17:37
36 years ago
2.7

6.8 km
12 mi S of Livermore, Alameda County, California, USAMore
May 3, 1986 15:20
36 years ago
2.6

7 km
Northern California (USA)More
May 3, 1986 08:05
36 years ago
2.0

12 km
Northern California (USA)More
May 2, 1986 20:19
36 years ago
2.6

6.9 km
Northern California (USA)More
May 2, 1986 17:44
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
May 1, 1986 17:35
36 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
Apr 30, 1986 20:44
36 years ago
2.7

6.8 km
Alameda County, 21 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 30, 1986 17:27
36 years ago
2.3

7.2 km
Northern California (USA)More
Apr 28, 1986 17:33
36 years ago
3.5

8.3 km
Alameda County, 15 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 28, 1986 04:53
36 years ago
2.3

7.6 km
Northern California (USA)More
Apr 26, 1986 11:07
36 years ago
2.5

6.8 km
Northern California (USA)More
Apr 25, 1986 22:51
36 years ago
2.5

6.6 km
Northern California (USA)More
Apr 24, 1986 03:55
36 years ago
2.4

7.8 km
Northern California (USA)More
Apr 23, 1986 16:35
36 years ago
2.7

1.9 km
Station Island, 6.9 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 23, 1986 15:54
36 years ago
2.4

2.9 km
San Francisco Bay Area, California (USA)More
Apr 23, 1986 06:15
36 years ago
2.4

7.5 km
Northern California (USA)More
Apr 21, 1986 03:52
36 years ago
2.6

2.2 km
Northern California (USA)More
Apr 19, 1986 07:13
36 years ago
2.7

6.8 km
13 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 18, 1986 13:50
36 years ago
2.4

1.5 km
San Francisco Bay Area, California (USA)More
Apr 18, 1986 13:02
36 years ago
2.0

2.6 km
San Francisco Bay Area, California (USA)More
Apr 18, 1986 12:41
36 years ago
2.6

2 km
San Francisco Bay Area, California (USA)More
Apr 18, 1986 12:29
36 years ago
2.2

1.1 km
San Francisco Bay Area, California (USA)More
Apr 18, 1986 01:38
36 years ago
2.7

8.1 km
12 mi S of Livermore, Alameda County, California, USAMore
Apr 16, 1986 19:32
36 years ago
2.1

7 km
Northern California (USA)More
Apr 16, 1986 07:59
36 years ago
2.1

6.3 km
Northern California (USA)More
Apr 16, 1986 07:08
36 years ago
2.0

7.1 km
Northern California (USA)More
Apr 15, 1986 18:56
36 years ago
2.4

5.9 km
Northern California (USA)More
Apr 15, 1986 17:00
36 years ago
2.4

7.1 km
Northern California (USA)More
Apr 15, 1986 05:23
36 years ago
2.6

6.5 km
Northern California (USA)More
Apr 14, 1986 23:03
36 years ago
2.0

4.4 km
San Francisco Bay Area, California (USA)More
Apr 14, 1986 20:14
36 years ago
2.3

1.6 km
San Francisco Bay Area, California (USA)More
Apr 14, 1986 18:46
36 years ago
2.1

6.2 km
Northern California (USA)More
Apr 14, 1986 13:18
36 years ago
2.1

4.2 km
Northern California (USA)More
Apr 13, 1986 16:33
36 years ago
2.4

6.8 km
San Francisco Bay Area, California (USA)More
Apr 13, 1986 13:37
36 years ago
2.5

6.2 km
Northern California (USA)More
Apr 12, 1986 13:50
36 years ago
2.6

2.5 km
Northern California (USA)More
Apr 12, 1986 02:28
36 years ago
2.2

4.9 km
Northern California (USA)More
Apr 12, 1986 01:12
36 years ago
2.5

8.3 km
Northern California (USA)More
Apr 11, 1986 18:17
37 years ago
2.6

6.8 km
Northern California (USA)More
Apr 11, 1986 16:31
37 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
Apr 11, 1986 11:38
37 years ago
2.0

6.1 km
Northern California (USA)More
Apr 10, 1986 22:39
37 years ago
2.1

7.8 km
Northern California (USA)More
Apr 10, 1986 22:12
37 years ago
3.0

6.7 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 10, 1986 21:56
37 years ago
2.6

6.8 km
Northern California (USA)More
Apr 10, 1986 17:53
37 years ago
2.6

6.7 km
Northern California (USA)More
Apr 10, 1986 16:37
37 years ago
2.3

2.6 km
Northern California (USA)More
Apr 10, 1986 09:07
37 years ago
2.6

7.1 km
Northern California (USA)More
Apr 9, 1986 20:53
37 years ago
2.1

-0.3 km
San Francisco Bay Area, California (USA)More
Apr 9, 1986 16:21
37 years ago
3.0

6.8 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 9, 1986 08:34
37 years ago
3.0

10.4 km
Alameda County, 18 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 8, 1986 02:20
37 years ago
2.0

7.5 km
Northern California (USA)More
Apr 6, 1986 22:49
37 years ago
2.0

2.9 km
Northern California (USA)More
Apr 6, 1986 14:18
37 years ago
2.8

8.1 km
13 mi S of Livermore, Alameda County, California, USAMore
Apr 6, 1986 11:55
37 years ago
2.2

6.4 km
Northern California (USA)More
Apr 5, 1986 18:43
37 years ago
3.4

7.6 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 5, 1986 16:25
37 years ago
2.1

7.3 km
Northern California (USA)More
Apr 5, 1986 08:10
37 years ago
2.7

7.8 km
13 mi S of Livermore, Alameda County, California, USAMore
Apr 5, 1986 03:34
37 years ago
2.5

7.1 km
Northern California (USA)More
Apr 5, 1986 01:14
37 years ago
2.0

6.5 km
Northern California (USA)More
Apr 5, 1986 00:35
37 years ago
2.0

7.5 km
Northern California (USA)More
Apr 4, 1986 21:38
37 years ago
2.0

8 km
Northern California (USA)More
Apr 4, 1986 17:38
37 years ago
2.1

2.5 km
Northern California (USA)More
Apr 4, 1986 10:17
37 years ago
2.4

5.3 km
Northern California (USA)More
Apr 4, 1986 10:16
37 years ago
3.2

5.7 km
13 mi E of San Jose, Santa Clara County, California, USAMore
Apr 4, 1986 05:56
37 years ago
2.4

5.8 km
Northern California (USA)More
Apr 4, 1986 02:44
37 years ago
2.0

4.9 km
Northern California (USA)More
Apr 3, 1986 22:39
37 years ago
2.1

8.4 km
Northern California (USA)More
Apr 3, 1986 21:34
37 years ago
2.1

8.4 km
Northern California (USA)More
Apr 3, 1986 19:29
37 years ago
2.5

5.1 km
Northern California (USA)More
Apr 3, 1986 18:36
37 years ago
2.0

-0.3 km
San Francisco Bay Area, California (USA)More
Apr 3, 1986 16:33
37 years ago
3.0

7.2 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 3, 1986 13:46
37 years ago
2.5

8.6 km
Northern California (USA)More
Apr 3, 1986 05:27
37 years ago
2.7

3.1 km
5.4 mi NE of Morgan Hill, Santa Clara County, California, USAMore
Apr 2, 1986 23:47
37 years ago
2.3

7 km
Northern California (USA)More
Apr 2, 1986 20:47
37 years ago
2.1

5.9 km
Northern California (USA)More
Apr 2, 1986 19:05
37 years ago
2.1

6.1 km
Northern California (USA)More
Apr 2, 1986 18:20
37 years ago
2.1

3.3 km
Northern California (USA)More
Apr 2, 1986 17:46
37 years ago
2.0

6.5 km
Northern California (USA)More
Apr 2, 1986 15:35
37 years ago
2.1

8 km
Northern California (USA)More
Apr 2, 1986 13:53
37 years ago
3.0

8.1 km
Alameda County, 15 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 2, 1986 06:14
37 years ago
2.8

6.7 km
13 mi S of Livermore, Alameda County, California, USAMore
Apr 2, 1986 03:25
37 years ago
2.1

7.2 km
Northern California (USA)More
Apr 2, 1986 02:50
37 years ago
3.3

7.6 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 1, 1986 23:33
37 years ago
2.1

4.5 km
Northern California (USA)More
Apr 1, 1986 11:35
37 years ago
2.1

7.2 km
Northern California (USA)More
Apr 1, 1986 10:21
37 years ago
2.4

2.5 km
Northern California (USA)More
Apr 1, 1986 08:53
37 years ago
3.0

6.7 km
13 mi NE of San Jose, Santa Clara County, California, USAMore
Apr 1, 1986 07:50
37 years ago
2.1

5.7 km
Northern California (USA)More
Apr 1, 1986 05:13
37 years ago
2.1

7.6 km
Northern California (USA)More
Apr 1, 1986 04:24
37 years ago
2.6

8.3 km
Northern California (USA)More
Apr 1, 1986 03:19
37 years ago
2.4

6.9 km
Northern California (USA)More
Apr 1, 1986 02:00
37 years ago
2.1

7.4 km
Northern California (USA)More
Apr 1, 1986 01:17
37 years ago
2.3

8.7 km
Northern California (USA)More
Apr 1, 1986 00:47
37 years ago
2.7

5.8 km
13 mi S of Livermore, Alameda County, California, USAMore
Apr 1, 1986 00:14
37 years ago
2.3

7.4 km
Northern California (USA)More
Mar 31, 1986 23:19
37 years ago
2.1

8.9 km
Northern California (USA)More
Mar 31, 1986 22:42
37 years ago
2.8

6.9 km
Alameda County, 14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 21:30
37 years ago
2.9

8.8 km
Alameda County, 15 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 21:21
37 years ago
2.8

6.8 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 21:09
37 years ago
2.5

7.8 km
Northern California (USA)More
Mar 31, 1986 19:41
37 years ago
2.8

8.8 km
15 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 19:08
37 years ago
2.0

8.4 km
Northern California (USA)More
Mar 31, 1986 19:04
37 years ago
2.1

7.5 km
Northern California (USA)More
Mar 31, 1986 19:00
37 years ago
2.2

6.4 km
Northern California (USA)More
Mar 31, 1986 18:05
37 years ago
2.0

7.5 km
Northern California (USA)More
Mar 31, 1986 18:04
37 years ago
2.1

5.6 km
Northern California (USA)More
Mar 31, 1986 17:12
37 years ago
2.9

9.3 km
Alameda County, 15 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 16:36
37 years ago
2.2

8.4 km
Northern California (USA)More
Mar 31, 1986 16:18
37 years ago
2.8

9.1 km
Alameda County, 14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 16:15
37 years ago
2.0

7 km
Northern California (USA)More
Mar 31, 1986 16:14
37 years ago
2.5

7.7 km
Northern California (USA)More
Mar 31, 1986 16:10
37 years ago
2.0

5.9 km
Northern California (USA)More
Mar 31, 1986 15:53
37 years ago
2.4

9 km
Northern California (USA)More
Mar 31, 1986 15:25
37 years ago
3.2

7.7 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 15:24
37 years ago
2.3

8 km
Northern California (USA)More
Mar 31, 1986 15:17
37 years ago
3.0

6.7 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 15:15
37 years ago
2.5

7.4 km
Northern California (USA)More
Mar 31, 1986 15:09
37 years ago
2.0

1.5 km
Northern California (USA)More
Mar 31, 1986 14:55
37 years ago
2.6

7.8 km
Northern California (USA)More
Mar 31, 1986 14:52
37 years ago
2.6

5.6 km
Northern California (USA)More
Mar 31, 1986 14:46
37 years ago
2.1

7.9 km
Northern California (USA)More
Mar 31, 1986 14:37
37 years ago
2.5

2.9 km
Northern California (USA)More
Mar 31, 1986 14:36
37 years ago
2.1

5.6 km
Northern California (USA)More
Mar 31, 1986 14:30
37 years ago
2.0

5.8 km
Northern California (USA)More
Mar 31, 1986 14:20
37 years ago
3.2

8.5 km
Alameda County, 14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 14:17
37 years ago
2.0

1.1 km
Northern California (USA)More
Mar 31, 1986 14:17
37 years ago
2.4

7.7 km
Northern California (USA)More
Mar 31, 1986 14:11
37 years ago
2.1

3.9 km
Northern California (USA)More
Mar 31, 1986 14:11
37 years ago
2.3

8.6 km
Northern California (USA)More
Mar 31, 1986 14:00
37 years ago
2.4

5.8 km
Northern California (USA)More
Mar 31, 1986 14:00
37 years ago
2.8

6.3 km
13 mi S of Livermore, Alameda County, California, USAMore
Mar 31, 1986 13:58
37 years ago
2.0

8.3 km
Northern California (USA)More
Mar 31, 1986 13:39
37 years ago
3.0

8.3 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 13:30
37 years ago
2.0

7.5 km
Northern California (USA)More
Mar 31, 1986 13:26
37 years ago
2.5

7.3 km
Northern California (USA)More
Mar 31, 1986 13:05
37 years ago
3.4

6.8 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 13:01
37 years ago
2.8

7.3 km
Alameda County, 14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 12:47
37 years ago
2.2

7.5 km
Northern California (USA)More
Mar 31, 1986 12:45
37 years ago
2.5

7.9 km
Northern California (USA)More
Mar 31, 1986 12:42
37 years ago
2.1

8.3 km
Northern California (USA)More
Mar 31, 1986 12:39
37 years ago
3.1

7.9 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 12:38
37 years ago
2.0

7.6 km
Northern California (USA)More
Mar 31, 1986 12:36
37 years ago
2.4

7.2 km
Northern California (USA)More
Mar 31, 1986 12:29
37 years ago
2.5

5.5 km
Northern California (USA)More
Mar 31, 1986 12:28
37 years ago
2.5

5.8 km
Northern California (USA)More
Mar 31, 1986 12:25
37 years ago
2.1

7.1 km
Northern California (USA)More
Mar 31, 1986 12:24
37 years ago
2.6

5 km
Northern California (USA)More
Mar 31, 1986 12:18
37 years ago
2.5

5.9 km
Northern California (USA)More
Mar 31, 1986 12:17
37 years ago
3.0

5.9 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 12:16
37 years ago
2.0

8.3 km
Northern California (USA)More
Mar 31, 1986 12:15
37 years ago
2.1

6.4 km
Northern California (USA)More
Mar 31, 1986 12:09
37 years ago
2.8

8.4 km
14 mi S of Livermore, Alameda County, California, USAMore
Mar 31, 1986 12:07
37 years ago
2.2

7.7 km
Northern California (USA)More
Mar 31, 1986 12:06
37 years ago
2.3

6.4 km
Northern California (USA)More
Mar 31, 1986 12:04
37 years ago
2.2

7.1 km
Northern California (USA)More
Mar 31, 1986 12:03
37 years ago
3.2

7.1 km
Alameda County, 16 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 12:03
37 years ago
2.9

8.9 km
Alameda County, 14 mi NE of San Jose, Santa Clara County, California, USAMore
Mar 31, 1986 11:58
37 years ago
3.2

7.8 km
14 mi NE of San Jose, Santa Clara County, California, USAMore
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Earlier earthquakes in the same area

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