Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 09-10-2023 and time 17:04:50 (Italy) in region 6 km SW Girifalco (CZ)

A magnitude ML 1.2 earthquake occured in region: 6 km SW Girifalco (CZ), on

  • 09-10-2023 15:04:50 (UTC)
  • 09-10-2023 17:04:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.7890, 16.3810 at 35 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
Girifalco CZ 6 5945 5945
Amaroni CZ 6 1855 7800
Jacurso CZ 7 624 8424
Cortale CZ 7 2117 10541
Curinga CZ 7 6779 17320
Polia VV 7 1023 18343
San Pietro a Maida CZ 7 4200 22543
Vallefiorita CZ 7 1771 24314
Filadelfia VV 8 5384 29698
Palermiti CZ 8 1213 30911
Centrache CZ 8 401 31312
Olivadi CZ 8 529 31841
Maida CZ 8 4566 36407
Cenadi CZ 8 563 36970
San Vito sullo Ionio CZ 9 1811 38781
Francavilla Angitola VV 10 1939 40720
Monterosso Calabro VV 11 1729 42449
Chiaravalle Centrale CZ 12 5759 48208
Montauro CZ 12 1732 49940
Squillace CZ 12 3608 53548
Petrizzi CZ 13 1131 54679
Gasperina CZ 13 2160 56839
Borgia CZ 13 7611 64450
Montepaone CZ 13 5282 69732
Argusto CZ 13 522 70254
San Floro CZ 13 716 70970
Capistrano VV 13 1042 72012
Caraffa di Catanzaro CZ 14 1866 73878
Stalettì CZ 14 2433 76311
Gagliato CZ 14 505 76816
Torre di Ruggiero CZ 15 1033 77849
San Nicola da Crissa VV 16 1335 79184
Satriano CZ 16 3448 82632
Cardinale CZ 16 2188 84820
Vallelonga VV 17 706 85526
Filogaso VV 18 1417 86943
Davoli CZ 18 5607 92550
Settingiano CZ 18 3124 95674
Soverato CZ 18 9204 104878
Amato CZ 19 835 105713
Pianopoli CZ 19 2589 108302
Marcellinara CZ 19 2285 110587
Maierato VV 19 2188 112775
San Sostene CZ 19 1370 114145
Feroleto Antico CZ 19 2171 116316
Miglierina CZ 20 767 117083
Pizzo VV 20 9278 126361
Simbario VV 20 966 127327

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of Lamezia Terme (70714 inhabitants)
23 Km SW of Catanzaro (90612 inhabitants)
57 Km S of Cosenza (67546 inhabitants)
72 Km W of Crotone (62178 inhabitants)
98 Km NE of Messina (238439 inhabitants)
99 Km NE of Reggio di Calabria (183035 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 1.2 2023-10-09
15:04:50		 38.7888 16.3805 35 2023-10-09
15:34:16		 Sala Sismica INGV-Roma 121935651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-09 15:04:50 ± 0.21
Latitude 38.7888 ± 0.0090
Longitude 16.3805 ± 0.0231
Depth (km) 35 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121935651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2055
Semi-minor axis of confidence ellipse (meter) 518
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 112
Circular confidence region, given by single value of horizontal uncertainty (meter) 2060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 10
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) 0.48204
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 121935651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-09 15:34:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SENI.EHZ. 2023-10-09T15:06:20.57 3.0 undecidable manual Sn -9.35 0
IV.SACS.HHZ. 2023-10-09T15:06:15.96 3.0 undecidable manual Sn -3.14 0
OX.MARN.HHZ. 2023-10-09T15:06:13.26 3.0 undecidable manual Pn 5.62 0
IV.BAG8.HNZ. 2023-10-09T15:06:10.16 3.0 undecidable manual Pn -2.76 0
IV.RM33.HNZ. 2023-10-09T15:06:05.54 3.0 undecidable manual Sg 3.7 0
MN.TRI.HHZ. 2023-10-09T15:05:58.40 3.0 negative manual Pn -4.23 0
IV.SFI.EHZ. 2023-10-09T15:05:45.64 3.0 undecidable manual Pn 2.3 0
CR.STON.BHZ. 2023-10-09T15:05:45.02 3.0 undecidable manual Pg 11.48 0
IV.PARC.HHZ. 2023-10-09T15:05:44.06 3.0 undecidable manual Pg 5.5 0
IV.RIBO.EHZ.01 2023-10-09T15:05:43.73 3.0 positive manual Pg 7.55 0
IV.CSNT.HHZ. 2023-10-09T15:05:37.47 3.0 positive manual Pn -3.26 0
IV.VAGA.HHZ. 2023-10-09T15:05:05.80 3.0 undecidable manual S 0
IV.PLAC.HHZ. 2023-10-09T15:05:05.65 0.3 undecidable manual S 172 38.0286 129 0.27 70
IV.VAGA.HHZ. 2023-10-09T15:05:04.16 3.0 undecidable manual P 0
IV.SELL.HHZ. 2023-10-09T15:05:03.51 1.0 undecidable manual S 45 30.3474 136 -0.35 23
IV.CAR1.HNE. 2023-10-09T15:05:01.37 0.6 undecidable manual P 344 53.502 119 0.33 44
IY.CHCE.HHN.00 2023-10-09T15:05:01.31 0.6 undecidable manual S 166 11.9769 160 0.11 50
IV.GRI.EHZ. 2023-10-09T15:05:00.61 0.3 undecidable manual S 43 4.995 171 -0.12 76
IV.SELL.HHZ. 2023-10-09T15:04:58.13 0.3 undecidable manual P 45 30.3474 136 -0.04 74
IV.PLAC.HHZ. 2023-10-09T15:04:58.93 0.3 undecidable manual P 172 38.0286 129 -0.11 70
IY.SPDC.HHN. 2023-10-09T15:04:58.48 0.3 undecidable manual P 217 36.2415 130 -0.35 67
IV.GRI.EHZ. 2023-10-09T15:04:56.45 0.3 undecidable manual P 43 4.995 171 0.09 76
IY.CHCE.HHN.00 2023-10-09T15:04:56.72 0.1 undecidable manual P 166 11.9769 160 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIPA.HHN. ML:1.2 0.000022100000000000002 0.56 AML other m 2023-10-09T15:05:01.43
IV.GRI.EHE. ML:1.7 0.0002125 0.28 AML other m 2023-10-09T15:05:01.57
IV.GRI.EHN. ML:1.4 0.00010384064000000001 0.2816 AML other m 2023-10-09T15:05:01.74
IV.SELL.HHE. ML:0.9 0.00002275 0.38 AML other m 2023-10-09T15:05:04.67
IV.SELL.HHN. ML:0.8 0.000020799999999999997 0.48 AML other m 2023-10-09T15:05:04.69
IV.PIPA.HHE. ML:1.4 0.000026249999999999998 0.9 AML other m 2023-10-09T15:05:23.45
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