Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 20-07-2020 and time 19:10:04 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.3 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 20-07-2020 17:10:04 (UTC)
  • 20-07-2020 19:10:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.0080, 16.0960 at 7 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Falerna CZ 6 4028 4028
Nocera Terinese CZ 7 4731 8759
Serra d'Aiello CS 10 458 9217
San Mango d'Aquino CZ 10 1564 10781
Gizzeria CZ 10 4982 15763
Cleto CS 14 1301 17064
Aiello Calabro CS 14 1729 18793
Martirano Lombardo CZ 14 1112 19905
Amantea CS 14 13975 33880
San Pietro in Amantea CS 15 505 34385
Martirano CZ 16 884 35269
Belmonte Calabro CS 17 2003 37272
Conflenti CZ 18 1392 38664
Lago CS 18 2624 41288
Grimaldi CS 19 1680 42968
Platania CZ 19 2172 45140
Altilia CS 19 711 45851
Motta Santa Lucia CZ 20 845 46696
Lamezia Terme CZ 20 70714 117410

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Lamezia Terme (70714 inhabitants)
35 Km SW of Cosenza (67546 inhabitants)
45 Km W of Catanzaro (90612 inhabitants)
89 Km W of Crotone (62178 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 1.3 2020-07-20
17:10:04		 39.0075 16.0957 7 2020-11-19
12:37:06		 Bollettino Sismico Italiano INGV 84257701
Reviewed
Rev100 		ML 1.3 2020-07-20
17:10:04		 39.0183 16.1168 7 2020-07-20
17:35:08		 Sala Sismica INGV-Roma 81194951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-20 17:10:04 ± 0.16
Latitude 39.0075 ± 0.0054
Longitude 16.0957 ± 0.0116
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84257701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 977
Semi-minor axis of confidence ellipse (meter) 427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.75633
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 11
Type of magnitude ML
Reference to an origin 84257701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-30 10:05:29

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 11
Type of magnitude ML
Reference to an origin 81194951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-20 17:35:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHE. 2020-07-20T17:10:26.86 0.6 undecidable manual S 154 68.6757 50 0.69 40
IV.CET2.HHZ. 2020-07-20T17:10:23.18 0.6 undecidable manual S 348 59.0964 50 -0.44 44
IV.CELI.HHZ. 2020-07-20T17:10:22.79 0.6 undecidable manual S 39 56.3991 50 -0.12 47
IV.SERS.HHZ. 2020-07-20T17:10:21.38 0.6 undecidable manual S 86 51.2154 50 -0.14 47
IV.JOPP.HHZ. 2020-07-20T17:10:20.55 0.6 undecidable manual S 202 48.0186 50 -0.12 48
IV.GRIS.HNE. 2020-07-20T17:10:20.37 0.6 undecidable manual P 346 83.9493 50 0.99 34
IV.SPS2.HHZ. 2020-07-20T17:10:17.77 0.6 undecidable manual S 34 37.7289 101 -0.11 49
MN.TIP.HHZ. 2020-07-20T17:10:16.11 0.3 undecidable manual P 71 60.1953 50 0.39 66
IV.PLAC.HHE. 2020-07-20T17:10:16.96 0.3 undecidable manual P 154 68.6757 50 -0.07 70
IV.CAR1.HHZ. 2020-07-20T17:10:15.15 0.6 undecidable manual S 20 29.0487 104 0.23 48
IV.CET2.HHZ. 2020-07-20T17:10:15.74 0.1 undecidable manual P 348 59.0964 50 0.18 93
IV.SERS.HHZ. 2020-07-20T17:10:14.00 0.3 undecidable manual P 86 51.2154 50 -0.34 68
IV.CELI.HHZ. 2020-07-20T17:10:14.95 0.3 undecidable manual P 39 56.3991 50 -0.2 70
IV.JOPP.HHZ. 2020-07-20T17:10:13.28 0.3 undecidable manual P 202 48.0186 50 -0.57 65
IV.GRI.EHN. 2020-07-20T17:10:12.26 0.3 undecidable manual P 126 34.743 102 0.62 65
IV.SPS2.HHZ. 2020-07-20T17:10:11.98 0.6 undecidable manual P 34 37.7289 101 -0.26 47
IV.CAR1.HHZ. 2020-07-20T17:10:10.61 0.1 positive manual P 20 29.0487 104 0.08 100
XK.GIZZ.HHZ. 2020-07-20T17:10:08.42 0.6 undecidable manual S 108 10.1787 125 -0.43 48
XK.GIZZ.HHZ. 2020-07-20T17:10:06.95 0.3 undecidable manual P 108 10.1787 125 -0.08 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHN. ML:1.8 0.00035043365 0.2304 AML other m 2020-07-20T17:10:15.55
IV.CAR1.HNN. ML:1.8 0.00031816495 0.2176 AML other m 2020-07-20T17:10:15.55
IV.CAR1.HHE. ML:1.6 0.000196924 0.4352 AML other m 2020-07-20T17:10:15.69
IV.CAR1.HNE. ML:1.4 0.000115712545 0.6272 AML other m 2020-07-20T17:10:15.53
IV.SPS2.HHN. ML:0.9 0.00002929852 0.32 AML other m 2020-07-20T17:10:17.91
IV.SPS2.HHE. ML:0.9 0.000028198920000000003 0.2432 AML other m 2020-07-20T17:10:18.36
IV.SERS.HHE. ML:0.6 0.0000097923475 1.2032 AML other m 2020-07-20T17:10:21.27
IV.SERS.HNE. ML:1.3 0.000052603280499999995 0.3232 AML other m 2020-07-20T17:10:21.76
IV.SERS.HHN. ML:0.6 0.000009900927000000001 0.9504 AML other m 2020-07-20T17:10:21.95
IV.JOPP.HHN. ML:1.4 0.000071767695 0.2432 AML other m 2020-07-20T17:10:24.72
IV.JOPP.HHE. ML:1.3 0.000057689264999999994 0.192 AML other m 2020-07-20T17:10:24.84
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