RaspberryShake-4D RD29A Earthquake Log Summary

Live Stream from RasbperryShake 4D Seismograph
(RD29A) in Chino Hills


This is a summary of the earthquakes that have been detected by RaspberryShake-4D RD29A located in Chino Hills, Ca. (Full log here). Rows with bold lettering triggered the alarm on the live stream.

If the Ratio (Current signal level/Average signal level for the past 20 seconds) is more than 4 for more than 1.5 seconds, the alarm is triggered. The larger the Ratio, the larger the seismic signal that first arrived at the seismograph.

Rows in non-bold italics did not trigger the alarm, but were recorded by the RaspberryShake. I have only started to log non-alarm quakes since 7/21/20. So, the log before this date is incomplete (My RaspberryShake 4D came online in October 2017).

Additions to the logs are not automated. So, new quakes will be posted as soon as possible.


RaspberryShake-4D RD29A Log Summary for May 2021

Select Month and Year to view a monthly summary. Select only a Year to view a yearly summary.

View the full log here

Number of Earthquakes Detected by Magnitude

0.0 - 0.9 1.0 - 1.9 2.0 - 2.9 3.0 - 3.9 4.0 - 4.9 5.0 - 5.9 6.0 - 6.9 7.0 - 7.9 8.0+ Total
0 14 10 5 4 4 5 0 0 42


Top 5 Largest Magnitudes Detected

Date Time Ratio Event Depth Km Dist Mi Dist Km Images
05-12-2021 07:26:10 M 6.7 - Mauritius - Reunion region 10.0 11,255 18,113 Seismogram Image
05-13-2021 23:52:35 5.20 M 6.6 - 257 km S of Sinabang, Indonesia 10.0 9,196 14,799 Seismogram Image
05-07-2021 16:47:57 M 6.1 - Fiji region 384.0 5,354 8,617 Seismogram Image
05-13-2021 02:50:15 M 6.0 - 151 km SSE of Punta de Burica, Panama 10.0 2,934 4,721 Seismogram Image
05-13-2021 17:10:28 7.04 M 6.0 - near the east coast of Honshu, Japan 43.1 5,334 8,584 Seismogram Image


Top 5 Smallest Magnitudes Detected

Date Time Ratio Event Depth Km Dist Mi Dist Km Images
05-11-2021 02:11:04 M 1.0 - 4km SSE of Chino Hills, CA 13.5 2.9 4.6 Seismogram Image
05-11-2021 22:26:03 M 1.0 - 10km E of Yorba Linda, CA 9.1 5.7 9.2 Seismogram Image
05-04-2021 06:09:10 M 1.3 - 11km W of Corona, CA 9.5 5.2 8.3 Seismogram Image
05-12-2021 20:55:17 M 1.6 - 5km NNE of San Bernardino, CA 5.4 28 46 Seismogram Image
05-05-2021 06:26:01 M 1.6 - 3km E of Fontana, CA 4.2 19 30 Seismogram Image


Top 5 Farthest Detected

Date Time Ratio Event Depth Km Dist Mi Dist Km Images
05-12-2021 07:26:10 M 6.7 - Mauritius - Reunion region 10.0 11,255 18,113 Seismogram Image
05-13-2021 23:52:35 5.20 M 6.6 - 257 km S of Sinabang, Indonesia 10.0 9,196 14,799 Seismogram Image
05-07-2021 16:47:57 M 6.1 - Fiji region 384.0 5,354 8,617 Seismogram Image
05-02-2021 00:09:33 M 5.8 - 31 km SW of Coquimbo, Chile 30.7 5,353 8,615 Seismogram Image
05-13-2021 17:10:28 7.04 M 6.0 - near the east coast of Honshu, Japan 43.1 5,334 8,584 Seismogram Image


Top 5 Closest Detected

Date Time Ratio Event Depth Km Dist Mi Dist Km Images
05-11-2021 02:14:13 33.72 M 1.7 - 4km SE of Chino Hills, CA 14.3 2.2 3.5 Seismogram Image
05-11-2021 02:11:04 M 1.0 - 4km SSE of Chino Hills, CA 13.5 2.9 4.6 Seismogram Image
05-04-2021 06:09:10 M 1.3 - 11km W of Corona, CA 9.5 5.2 8.3 Seismogram Image
05-11-2021 22:26:03 M 1.0 - 10km E of Yorba Linda, CA 9.1 5.7 9.2 Seismogram Image
05-05-2021 22:47:25 40.24 M 2.2 - 6km NW of Mira Loma, CA 6.9 9.5 15.2 Seismogram Image






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