Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 03-10-2023 and time 06:47:31 (Italy) in region 4 km NW Caraffa di Catanzaro (CZ)

A magnitude ML 1.8 earthquake occured in region: 4 km NW Caraffa di Catanzaro (CZ), on

  • 03-10-2023 04:47:31 (UTC)
  • 03-10-2023 06:47:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.9040, 16.4550 at 24 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Caraffa di Catanzaro CZ 4 1866 1866
Amato CZ 4 835 2701
Marcellinara CZ 5 2285 4986
Miglierina CZ 5 767 5753
Settingiano CZ 5 3124 8877
Tiriolo CZ 7 3870 12747
Cortale CZ 8 2117 14864
Pianopoli CZ 8 2589 17453
Feroleto Antico CZ 9 2171 19624
Jacurso CZ 9 624 20248
Maida CZ 9 4566 24814
San Floro CZ 9 716 25530
Girifalco CZ 9 5945 31475
Borgia CZ 10 7611 39086
Gimigliano CZ 10 3381 42467
San Pietro a Maida CZ 11 4200 46667
San Pietro Apostolo CZ 11 1691 48358
Amaroni CZ 12 1855 50213
Catanzaro CZ 12 90612 140825
Serrastretta CZ 13 3176 144001
Cicala CZ 14 968 144969
Vallefiorita CZ 14 1771 146740
Lamezia Terme CZ 14 70714 217454
Curinga CZ 14 6779 224233
Pentone CZ 14 2113 226346
Squillace CZ 15 3608 229954
Fossato Serralta CZ 15 594 230548
Platania CZ 16 2172 232720
Sorbo San Basile CZ 16 809 233529
Stalettì CZ 17 2433 235962
Carlopoli CZ 17 1516 237478
Taverna CZ 17 2703 240181
Palermiti CZ 17 1213 241394
Panettieri CS 17 351 241745
Sellia CZ 17 530 242275
Simeri Crichi CZ 18 4698 246973
Montauro CZ 18 1732 248705
Decollatura CZ 18 3159 251864
Albi CZ 18 949 252813
Gasperina CZ 19 2160 254973
Filadelfia VV 19 5384 260357
Centrache CZ 19 401 260758
Magisano CZ 20 1258 262016
Olivadi CZ 20 529 262545

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km W of Catanzaro (90612 inhabitants)
14 Km SE of Lamezia Terme (70714 inhabitants)
47 Km SE of Cosenza (67546 inhabitants)
61 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
Reviewed
Rev100 		ML 1.8 2023-10-03
04:47:31		 38.9042 16.4547 24 2023-10-03
04:54:28		 Sala Sismica INGV-Roma 121695561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-03 04:47:31 ± 0.15
Latitude 38.9042 ± 0.0063
Longitude 16.4547 ± 0.0092
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121695561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 879
Semi-minor axis of confidence ellipse (meter) 484
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.86515
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 121695561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-03 04:54:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.KBN.HHZ.00 2023-10-03T04:49:06.89 3.0 undecidable manual Sn -3.73 0
IV.OSSC.HHZ. 2023-10-03T04:49:01.90 3.0 undecidable manual Pn 3.61 0
IV.SGG.HHZ. 2023-10-03T04:48:48.81 3.0 undecidable manual Sn -1.48 0
IV.ATCC.EHZ. 2023-10-03T04:48:48.65 3.0 undecidable manual Pn 2.79 0
IV.SRES.HHZ. 2023-10-03T04:48:37.19 3.0 undecidable manual Pn 0.53 0
IV.HMDC.HHZ. 2023-10-03T04:48:35.54 3.0 undecidable manual Sn -1.99 0
IV.FIAM.HHZ. 2023-10-03T04:48:30.30 3.0 negative manual Pn -2.6 0
IV.GIUL.HHZ. 2023-10-03T04:48:27.82 3.0 negative manual Pn 3.17 0
IV.CERT.HHZ. 2023-10-03T04:48:27.90 3.0 undecidable manual Pn -2.57 0
7C.SPAOL.HNZ. 2023-10-03T04:48:23.78 3.0 undecidable manual Sg 1.26 0
IV.PZUN.HNZ. 2023-10-03T04:48:20.52 3.0 undecidable manual Sn -1.9 0
IV.PLLN.EHZ. 2023-10-03T04:48:03.16 3.0 negative manual Pn -0.53 0
IV.CET2.HHZ. 2023-10-03T04:47:55.82 0.3 undecidable manual S 328 81.5517 101 0.19 65
XE.T0702.HHZ. 2023-10-03T04:47:47.40 1.0 undecidable manual P 341 96.0261 99 -0.07 22
IV.CAR1.HHZ. 2023-10-03T04:47:46.22 0.3 undecidable manual S 332 44.0226 111 0.25 69
IV.CET2.HHZ. 2023-10-03T04:47:45.28 0.1 negative manual P 328 81.5517 101 0.01 90
IV.SERS.HHZ. 2023-10-03T04:47:41.57 0.6 undecidable manual S 54 24.9528 128 0.08 49
IY.CHCE.HHZ.00 2023-10-03T04:47:41.69 0.3 undecidable manual S 188 24.6531 128 0.25 73
IV.CELI.HHZ. 2023-10-03T04:47:41.22 0.6 positive manual P 5 55.5 106 -0.14 47
IV.PLAC.HHZ. 2023-10-03T04:47:40.67 0.1 positive manual P 182 50.5161 108 0.05 96
IV.CAR1.HHZ. 2023-10-03T04:47:39.21 0.3 positive manual P 332 44.0226 111 -0.47 67
IV.GRI.EHZ. 2023-10-03T04:47:38.50 0.6 undecidable manual S 198 9.5793 155 -0.41 47
IV.SERS.HHZ. 2023-10-03T04:47:37.15 0.1 negative manual P 54 24.9528 128 0.05 99
IY.CHCE.HHZ.00 2023-10-03T04:47:37.15 0.1 positive manual P 188 24.6531 128 0.08 100
IV.GRI.EHZ. 2023-10-03T04:47:35.50 0.3 negative manual P 198 9.5793 155 -0.1 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GRI.EHN. ML:2.1 0.000829 0.26 AML other m 2023-10-03T04:47:38.70
IV.GRI.EHE. ML:2.0 0.0007055 1.46 AML other m 2023-10-03T04:47:38.13
IV.SERS.HNN. ML:1.6 0.0001915 0.32 AML other m 2023-10-03T04:47:41.90
IV.SERS.HHN. ML:1.6 0.0001595 0.34 AML other m 2023-10-03T04:47:41.66
IV.SERS.HHE. ML:1.7 0.000201 0.3 AML other m 2023-10-03T04:47:41.89
IY.CHCE.HHN.00 ML:2.3 0.000847 1.6 AML other m 2023-10-03T04:47:41.92
IV.SERS.HNE. ML:1.5 0.0001388 0.98 AML other m 2023-10-03T04:47:42.66
IY.CHCE.HHE.00 ML:2.2 0.000728 1.48 AML other m 2023-10-03T04:47:42.01
IV.CAR1.HNE. ML:1.9 0.00023099999999999998 0.4 AML other m 2023-10-03T04:47:46.77
IV.CAR1.HHE. ML:1.9 0.00023500000000000002 0.4 AML other m 2023-10-03T04:47:46.57
IV.CAR1.HHN. ML:1.9 0.0001945 0.48 AML other m 2023-10-03T04:47:48.51
IV.CAR1.HNN. ML:1.8 0.0001895 0.48 AML other m 2023-10-03T04:47:48.51
IV.CELI.HHN. ML:1.3 0.00004704999999999999 0.52 AML other m 2023-10-03T04:47:50.61
IV.PLAC.HHN. ML:1.4 0.0000526 0.52 AML other m 2023-10-03T04:47:51.72
IV.PLAC.HHE. ML:1.4 0.00005935 1.72 AML other m 2023-10-03T04:47:52.95
IV.CELI.HHE. ML:1.1 0.00002495 1.1 AML other m 2023-10-03T04:47:53.44
IV.CET2.HHN. ML:2.0 0.00011335 0.3 AML other m 2023-10-03T04:47:56.31
IV.CET2.HHE. ML:1.8 0.0000775 0.7 AML other m 2023-10-03T04:47:56.90
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