Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 24-05-2023 and time 18:52:19 (UTC) in region 3 km SE Caraffa di Catanzaro (CZ)

A magnitude ML 0.5 earthquake occured in region: 3 km SE Caraffa di Catanzaro (CZ), on

  • 24-05-2023 18:52:19 (UTC)
  • 24-05-2023 20:52:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.8650, 16.5110 at 8 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 3 1866 1866
San Floro CZ 3 716 2582
Borgia CZ 4 7611 10193
Settingiano CZ 6 3124 13317
Marcellinara CZ 7 2285 15602
Girifalco CZ 9 5945 21547
Catanzaro CZ 9 90612 112159
Cortale CZ 9 2117 114276
Squillace CZ 9 3608 117884
Tiriolo CZ 9 3870 121754
Amaroni CZ 9 1855 123609
Amato CZ 10 835 124444
Miglierina CZ 10 767 125211
Vallefiorita CZ 11 1771 126982
Stalettì CZ 11 2433 129415
Jacurso CZ 12 624 130039
Gimigliano CZ 13 3381 133420
Maida CZ 13 4566 137986
Montauro CZ 13 1732 139718
Palermiti CZ 14 1213 140931
Gasperina CZ 14 2160 143091
San Pietro a Maida CZ 14 4200 147291
Pianopoli CZ 15 2589 149880
Pentone CZ 15 2113 151993
Feroleto Antico CZ 15 2171 154164
Simeri Crichi CZ 16 4698 158862
Montepaone CZ 16 5282 164144
Fossato Serralta CZ 16 594 164738
San Pietro Apostolo CZ 16 1691 166429
Centrache CZ 16 401 166830
Sellia CZ 17 530 167360
Curinga CZ 17 6779 174139
Olivadi CZ 17 529 174668
Soveria Simeri CZ 17 1564 176232
Cicala CZ 18 968 177200
Sorbo San Basile CZ 18 809 178009
Petrizzi CZ 18 1131 179140
Serrastretta CZ 18 3176 182316
Cenadi CZ 18 563 182879
Taverna CZ 19 2703 185582
San Vito sullo Ionio CZ 19 1811 187393
Albi CZ 19 949 188342
Magisano CZ 20 1258 189600
Soverato CZ 20 9204 198804
Zagarise CZ 20 1647 200451

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SW of Catanzaro (90612 inhabitants)
21 Km SE of Lamezia Terme (70714 inhabitants)
53 Km SE of Cosenza (67546 inhabitants)
58 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 0.5 2023-05-24
18:52:19		 38.8648 16.5107 8 2023-05-24
18:57:47		 Sala Sismica INGV-Roma 117690781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-24 18:52:19 ± 0.07
Latitude 38.8648 ± 0.0045
Longitude 16.5107 ± 0.0081
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117690781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 97
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.53779
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 117690781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-24 18:57:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELI.HHZ. 2023-05-24T18:52:38.04 0.6 undecidable manual S 360 59.6958 50 -0.03 63
IV.PLAC.HHZ. 2023-05-24T18:52:34.68 0.6 undecidable manual S 188 46.5201 50 0.13 63
IV.CELI.HHZ. 2023-05-24T18:52:30.11 0.6 undecidable manual P 360 59.6958 50 0.08 62
IV.PLAC.HHZ. 2023-05-24T18:52:27.82 0.6 undecidable manual P 188 46.5201 50 -0.18 63
IV.SERS.HHZ. 2023-05-24T18:52:27.73 0.6 undecidable manual S 39 24.4533 109 -0.26 64
IV.SELL.HHZ. 2023-05-24T18:52:25.68 0.6 undecidable manual S 38 16.5723 116 0.22 66
IV.SERS.HHZ. 2023-05-24T18:52:24.07 0.6 negative manual P 39 24.4533 109 -0.14 66
IV.GRI.EHZ. 2023-05-24T18:52:23.32 0.6 undecidable manual S 239 9.1797 132 0.01 69
IV.SELL.HHZ. 2023-05-24T18:52:22.89 0.3 undecidable manual P 38 16.5723 116 0.14 100
IV.GRI.EHZ. 2023-05-24T18:52:21.40 1.0 undecidable manual P 239 9.1797 132 -0.11 34
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GRI.EHN. ML:1.3 0.0002895 0.3 AML other m 2023-05-24T18:52:23.59
IV.GRI.EHE. ML:1.1 0.00017649999999999998 1.32 AML other m 2023-05-24T18:52:23.05
IV.SELL.HHE. ML:0.2 0.00001585 0.98 AML other m 2023-05-24T18:52:26.14
IV.SELL.HHN. ML:0.2 0.000013000000000000001 0.36 AML other m 2023-05-24T18:52:27.22
IV.SERS.HHN. ML:0.4 0.000016899999999999997 1.42 AML other m 2023-05-24T18:52:27.11
IV.SERS.HHE. ML:0.6 0.000023650000000000002 0.46 AML other m 2023-05-24T18:52:28.32
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