Earthquake with magnitude of ML 1.7 on date 21-08-2020 and time 01:22:28 (Italy) in region Costa Calabra nord occidentale (Cosenza)

A magnitude ML 1.7 earthquake occured in region: Costa Calabra nord occidentale (Cosenza), on

  • 20-08-2020 23:22:28 (UTC)
  • 21-08-2020 01:22:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.05, 15.79 at 173 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km W of Lamezia Terme (70714 inhabitants)
49 Km SW of Cosenza (67546 inhabitants)
72 Km W of Catanzaro (90612 inhabitants)
97 Km N of Messina (238439 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 1.7 2020-08-20
23:22:28
39.05 15.79 173 2020-11-19
12:37:05
Bollettino Sismico Italiano INGV 83934571
Reviewed
Rev100
ML 1.7 2020-08-20
23:22:28
39.04 15.75 174 2020-08-20
23:32:46
Sala Sismica INGV-Roma 82184811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-20 23:22:28 ± 0.23
Latitude 39.05 ± 0.01
Longitude 15.79 ± 0.03
Depth (km) 173 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83934571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2634
Semi-minor axis of confidence ellipse (meter) 112
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 2630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.04411
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83934571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-20 02:43:35

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82184811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-20 23:32:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2020-08-20T23:24:15.00 3.0 undecidable manual Sn -1.07 0
IV.APEC.HHZ. 2020-08-20T23:24:07.39 3.0 negative manual Pg 18.709999 0
IV.RCAV.EHZ. 2020-08-20T23:24:06.73 3.0 undecidable manual Sn -3.27 0
IV.ROSPO.HHZ. 2020-08-20T23:24:04.16 3.0 undecidable manual Sn 1.55 0
IV.MF5.EHZ. 2020-08-20T23:23:49.72 3.0 undecidable manual Pg 12.61 0
IV.LAV9.HHZ. 2020-08-20T23:23:42.32 3.0 negative manual Pg 15.26 0
IV.ROSPO.HHZ. 2020-08-20T23:23:32.00 3.0 undecidable manual Pg 9.05 0
IV.AMUR.HHZ. 2020-08-20T23:23:31.80 3.0 undecidable manual Sn -1.34 0
HL.VLS.HHZ. 2020-08-20T23:23:29.91 3.0 undecidable manual Pn -0.18 0
MN.CUC.HHE. 2020-08-20T23:23:15.21 0.6 undecidable manual S 1 0.9479 147 -0.4 42
IV.MILZ.HHN. 2020-08-20T23:23:15.14 0.6 undecidable manual S 209 0.8867 149 0.31 43
IV.GMB.BHE. 2020-08-20T23:23:15.39 1.0 undecidable manual S 178 0.8777 149 0.68 19
IV.PLAC.HHZ. 2020-08-20T23:23:13.51 0.6 undecidable manual S 139 0.7833 152 -0.09 46
MN.CEL.HHZ. 2020-08-20T23:23:13.02 0.6 undecidable manual S 174 0.7896 152 -0.64 40
MN.CLTB.HHZ. 2020-08-20T23:23:13.64 3.0 negative manual Pn -0.49 0
IV.GRIS.EHE. 2020-08-20T23:23:12.94 0.6 undecidable manual S 4 0.6961 154 0.28 45
IV.CAR1.HHZ. 2020-08-20T23:23:10.50 0.6 undecidable manual S 58 0.3894 165 0.39 47
IV.JOPP.HHZ. 2020-08-20T23:23:10.50 0.6 undecidable manual S 170 0.4452 163 0.03 50
IV.CET2.HHZ. 2020-08-20T23:23:10.50 0.6 undecidable manual S 15 0.5 161 -0.38 46
IV.MTMR.EHZ. 2020-08-20T23:23:09.21 3.0 undecidable manual Pn 2.28 0
IV.SALB.HHZ. 2020-08-20T23:22:56.32 0.6 undecidable manual P 27 0.9362 147 0.54 40
IV.MTTG.HHZ. 2020-08-20T23:22:56.86 0.1 undecidable manual P 184 1.0441 144 0.24 84
IV.MILZ.HHN. 2020-08-20T23:22:55.32 0.3 undecidable manual P 209 0.8867 149 -0.1 67
IV.GMB.BHE. 2020-08-20T23:22:55.20 1.0 undecidable manual P 178 0.8777 149 -0.15 22
IV.MPNC.HHN. 2020-08-20T23:22:55.61 0.6 undecidable manual P 201 0.9605 146 -0.35 42
MN.CUC.HHE. 2020-08-20T23:22:55.76 0.1 positive manual P 1 0.9479 147 -0.11 88
IV.PLAC.HHZ. 2020-08-20T23:22:54.68 0.1 positive manual P 139 0.7833 152 -0.02 93
IV.GRIS.EHE. 2020-08-20T23:22:54.14 0.6 undecidable manual P 4 0.6961 154 -0.02 48
MN.CEL.HHZ. 2020-08-20T23:22:54.56 0.6 undecidable manual P 174 0.7896 152 -0.18 45
IV.CET2.HHZ. 2020-08-20T23:22:53.39 0.3 undecidable manual P 15 0.5 161 0.26 71
IV.CAR1.HHZ. 2020-08-20T23:22:52.48 0.6 undecidable manual P 58 0.3894 165 -0.21 49
IV.JOPP.HHZ. 2020-08-20T23:22:52.93 0.1 undecidable manual P 170 0.4452 163 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:2 3.635E-5 0.64 AML other m 2020-08-20T23:23:10.79
IV.CAR1.HHE. ML:1.6 1.529418E-5 0.2048 AML other m 2020-08-20T23:23:12.23
IV.JOPP.HHE. ML:2 3.265E-5 0.56 AML other m 2020-08-20T23:23:12.10
IV.PLAC.HHN. ML:1.5 1.2395459E-5 0.2304 AML other m 2020-08-20T23:23:14.37
MN.CEL.HHN. ML:1.7 1.6521885E-5 0.2176 AML other m 2020-08-20T23:23:14.70
IV.PLAC.HHE. ML:1.8 1.9718145E-5 1.616 AML other m 2020-08-20T23:23:15.93
IV.CAR1.HHN. ML:1.7 1.792958E-5 0.3424 AML other m 2020-08-20T23:23:15.96
MN.CEL.HHE. ML:1.5 1.19553105E-5 0.2048 AML other m 2020-08-20T23:23:16.15
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download