Earthquake with magnitude of ML 1.6 on date 20-10-2021 and time 08:54:17 (Italy) in region Costa Calabra nord occidentale (Cosenza)

A magnitude ML 1.6 earthquake occured in region: Costa Calabra nord occidentale (Cosenza), on

  • 20-10-2021 06:54:17 (UTC)
  • 20-10-2021 08:54:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.1970, 15.8880 at 60 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fiumefreddo Bruzio CS 16 2994 2994
Longobardi CS 16 2312 5306
Belmonte Calabro CS 17 2003 7309
Amantea CS 18 13975 21284
San Lucido CS 19 6047 27331
Falconara Albanese CS 19 1427 28758

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Cosenza (67546 inhabitants)
45 Km NW of Lamezia Terme (70714 inhabitants)
69 Km W of Catanzaro (90612 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.6 2021-10-20
06:54:17
39.197 15.8885 60 2022-03-30
13:04:26
Bollettino Sismico Italiano INGV 99315091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-20 06:54:17 ± 0.23
Latitude 39.1970 ± 0.0081
Longitude 15.8885 ± 0.0162
Depth (km) 60 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99315091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1432
Semi-minor axis of confidence ellipse (meter) 720
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 1430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.86065
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 99315091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-04 10:18:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-10-20T06:56:11.90 3.0 undecidable manual Sn 1.7 0
IV.OSSC.HHZ. 2021-10-20T06:55:53.81 3.0 negative manual Pg 13.61 0
IV.SENA.HHZ. 2021-10-20T06:55:33.46 3.0 undecidable manual Pn -0.5 0
IV.MNTP.HNZ. 2021-10-20T06:55:32.22 3.0 positive manual Pg 8.76 0
IV.PP3.EHZ. 2021-10-20T06:55:26.67 3.0 negative manual Pn 0.79 0
IV.LRP.EHZ. 2021-10-20T06:55:09.65 3.0 undecidable manual Pg 4.39 0
IV.LPEL.HHZ. 2021-10-20T06:55:08.83 3.0 undecidable manual Pn 1.99 0
IV.EVRN.HHZ. 2021-10-20T06:55:01.50 3.0 undecidable manual Sn -4.19 0
IV.PZUN.HHZ. 2021-10-20T06:54:48.71 3.0 negative manual Pg 4.97 0
IV.GALF.HHZ. 2021-10-20T06:54:45.29 3.0 negative manual Pn -2.87 0
IV.JOPP.HHZ. 2021-10-20T06:54:40.55 0.3 undecidable manual S 180 65.49 123 -0.14 74
IV.CELI.HHZ. 2021-10-20T06:54:39.39 0.6 undecidable manual S 67 57.8976 127 0.03 51
IV.GRIS.EHZ. 2021-10-20T06:54:39.90 0.3 undecidable manual S 357 60.3951 126 0.12 75
IV.IVPL.HHZ. 2021-10-20T06:54:37.56 3.0 undecidable manual P -0.67 0
IV.CET2.HHZ. 2021-10-20T06:54:36.24 0.3 undecidable manual S 9 37.2294 142 0.08 78
IV.PLAC.HHZ. 2021-10-20T06:54:34.65 0.3 undecidable manual P 150 95.5377 111 0.31 68
IV.CAR1.HHZ. 2021-10-20T06:54:31.42 3.0 undecidable manual S -0.47 0
IV.SERS.HHZ. 2021-10-20T06:54:31.74 0.3 undecidable manual P 104 71.1732 120 0.15 73
IV.JOPP.HHZ. 2021-10-20T06:54:31.08 0.1 undecidable manual P 180 65.49 123 0.09 100
IV.GRIS.EHZ. 2021-10-20T06:54:30.34 0.3 undecidable manual P 357 60.3951 126 -0.13 75
IV.CELI.HHZ. 2021-10-20T06:54:29.92 0.3 undecidable manual P 67 57.8976 127 -0.3 73
IV.CET2.HHZ. 2021-10-20T06:54:28.46 0.3 undecidable manual P 9 37.2294 142 0.09 79
IV.SPS2.HHZ. 2021-10-20T06:54:28.32 0.3 undecidable manual P 75 40.0266 139 -0.28 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CET2.HHE. ML:1.6 0.000058497645000000004 0.3584 AML other m 2021-10-20T06:54:36.43
IV.CET2.HHN. ML:1.7 0.00007952591 0.6624 AML other m 2021-10-20T06:54:36.41
IV.JOPP.HHE. ML:1.4 0.000028787734999999998 0.7616 AML other m 2021-10-20T06:54:41.01
IV.JOPP.HHN. ML:2.0 0.000109089465 0.3392 AML other m 2021-10-20T06:54:40.90
IV.CELI.HNN. ML:1.7 0.00006705893 1.2992 AML other m 2021-10-20T06:54:40.13
IV.CELI.HHN. ML:0.9 0.0000075241894999999995 1.1616 AML other m 2021-10-20T06:54:39.73
IV.CELI.HHE. ML:0.9 0.0000082589145 0.3616 AML other m 2021-10-20T06:54:39.76
IV.CELI.HNE. ML:1.6 0.000057124565 1.3792 AML other m 2021-10-20T06:54:39.86
IV.GRIS.EHE. ML:1.4 0.00003026251 0.32 AML other m 2021-10-20T06:54:40.16
IV.GRIS.EHN. ML:1.7 0.000058790919999999994 0.24 AML other m 2021-10-20T06:54:40.25
IV.JOPP.HNN. ML:2.0 0.0001091917 0.3424 AML other m 2021-10-20T06:54:40.91
IV.JOPP.HNE. ML:1.9 0.000098159665 0.4096 AML other m 2021-10-20T06:54:41.14
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download