Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-04-2023 and time 15:06:01 (UTC) in region 3 km W Colosimi (CS)

A magnitude ML 1.4 earthquake occured in region: 3 km W Colosimi (CS), on

  • 21-04-2023 15:06:01 (UTC)
  • 21-04-2023 17:06:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.1200, 16.3640 at 10 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
Colosimi CS 3 1247 1247
Soveria Mannelli CZ 4 3076 4323
Bianchi CS 5 1305 5628
Scigliano CS 5 1226 6854
Pedivigliano CS 5 831 7685
Carpanzano CS 6 255 7940
Parenti CS 7 2188 10128
Motta Santa Lucia CZ 7 845 10973
Marzi CS 8 989 11962
Rogliano CS 8 5637 17599
Decollatura CZ 8 3159 20758
Conflenti CZ 9 1392 22150
Belsito CS 9 923 23073
Santo Stefano di Rogliano CS 9 1725 24798
Altilia CS 10 711 25509
Mangone CS 10 1891 27400
Panettieri CS 10 351 27751
Carlopoli CZ 11 1516 29267
Martirano CZ 11 884 30151
Malito CS 11 783 30934
Cellara CS 11 504 31438
Grimaldi CS 11 1680 33118
Figline Vegliaturo CS 12 1137 34255
Martirano Lombardo CZ 12 1112 35367
Serrastretta CZ 13 3176 38543
Piane Crati CS 13 1423 39966
Platania CZ 13 2172 42138
Aprigliano CS 14 2890 45028
Paterno Calabro CS 15 1398 46426
Cicala CZ 15 968 47394
San Pietro Apostolo CZ 16 1691 49085
Pietrafitta CS 16 1310 50395
Dipignano CS 16 4376 54771
Lamezia Terme CZ 16 70714 125485
San Mango d'Aquino CZ 16 1564 127049
Aiello Calabro CS 17 1729 128778
Cleto CS 17 1301 130079
Domanico CS 17 943 131022
Pedace CS 17 1907 132929
Feroleto Antico CZ 18 2171 135100
Serra Pedace CS 18 986 136086
Casole Bruzio CS 18 2578 138664
Pianopoli CZ 18 2589 141253
Trenta CS 19 2633 143886
Spezzano Piccolo CS 19 2079 145965
Lago CS 19 2624 148589
Nocera Terinese CZ 20 4731 153320
Carolei CS 20 3330 156650
Spezzano della Sila CS 20 4541 161191

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of Lamezia Terme (70714 inhabitants)
22 Km SE of Cosenza (67546 inhabitants)
31 Km NW of Catanzaro (90612 inhabitants)
66 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 1.4 2023-04-21
15:06:01		 39.12 16.3643 10 2024-03-01
17:18:20		 Bollettino Sismico Italiano INGV 125073921
Reviewed
Rev100 		ML 1.4 2023-04-21
15:06:01		 39.1327 16.3718 14 2023-04-21
15:24:10		 Sala Sismica INGV-Roma 116574331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-21 15:06:01 ± 0.08
Latitude 39.1200 ± 0.0036
Longitude 16.3643 ± 0.0081
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 125073921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 352
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.17177
Epicentral distance of station farthest from the epicenter (degree) 0.73475
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 116574331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-21 15:24:10

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 125073921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-02-06 14:46:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
XE.T0702.HHE. 2023-04-21T15:06:23.11 0.6 undecidable manual S 340 70.8735 50 0.37 43
IV.CET2.HHZ. 2023-04-21T15:06:19.05 0.6 undecidable manual S 322 57.3981 50 -0.08 47
IV.GRIS.EHN. 2023-04-21T15:06:15.12 0.3 undecidable manual P 328 81.5517 50 -0.15 67
IV.PLAC.HHE. 2023-04-21T15:06:14.20 0.3 undecidable manual P 175 74.6697 50 0 70
XE.T0702.HHE. 2023-04-21T15:06:13.47 0.3 undecidable manual P 340 70.8735 50 -0.15 68
IV.PIPA.HHZ. 2023-04-21T15:06:12.36 0.3 undecidable manual P 44 56.0994 50 1.02 52
IV.CELI.HHZ. 2023-04-21T15:06:12.53 0.3 undecidable manual S 22 33.744 50 -0.29 71
IV.GRI.EHZ. 2023-04-21T15:06:12.90 0.6 undecidable manual S 172 33.3444 50 0.17 48
IV.SELL.HHZ. 2023-04-21T15:06:11.11 0.6 undecidable manual S 124 27.3504 50 0 51
IV.CET2.HHZ. 2023-04-21T15:06:11.39 0.3 undecidable manual P 322 57.3981 50 -0.15 70
IV.SERS.HHZ. 2023-04-21T15:06:11.55 0.6 undecidable manual S 108 29.4483 50 -0.13 49
IY.CHCE.HHN.00 2023-04-21T15:06:10.24 0.3 undecidable manual P 175 48.5181 50 0.06 72
IV.CAR1.HHZ. 2023-04-21T15:06:09.10 0.3 undecidable manual S 318 19.7691 117 0.22 74
IV.GRI.EHZ. 2023-04-21T15:06:08.01 0.3 undecidable manual P 172 33.3444 50 0.17 73
IV.GIZZ.HHN. 2023-04-21T15:06:08.82 0.6 undecidable manual S 221 20.5683 116 -0.31 48
IV.SPS2.HHZ. 2023-04-21T15:06:08.31 0.3 undecidable manual S 353 19.0698 118 -0.36 72
IV.CELI.HHZ. 2023-04-21T15:06:07.60 0.3 undecidable manual P 22 33.744 50 -0.29 71
IV.SERS.HHZ. 2023-04-21T15:06:07.14 0.1 undecidable manual P 108 29.4483 50 -0.09 99
IV.SELL.HHZ. 2023-04-21T15:06:06.82 0.1 undecidable manual P 124 27.3504 50 -0.09 100
IV.CAR1.HHZ. 2023-04-21T15:06:05.75 0.1 undecidable manual P 318 19.7691 117 0.13 100
IV.SPS2.HHZ. 2023-04-21T15:06:05.81 0.3 undecidable manual P 353 19.0698 118 0.31 72
IV.GIZZ.HHN. 2023-04-21T15:06:05.67 0.3 undecidable manual P 221 20.5683 116 -0.09 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SPS2.HHE. ML:0.6 0.00002835 1.76 AML other m 2023-04-21T15:06:08.01
IV.GIZZ.HHN. ML:1.7 0.000388 0.66 AML other m 2023-04-21T15:06:09.46
IV.SPS2.HHN. ML:0.8 0.0000493 0.28 AML other m 2023-04-21T15:06:09.30
IV.CAR1.HHE. ML:1.5 0.00022649999999999998 0.28 AML other m 2023-04-21T15:06:09.58
IV.CAR1.HHN. ML:1.3 0.000144 0.34 AML other m 2023-04-21T15:06:09.40
IV.CAR1.HNN. ML:1.4 0.000182 0.36 AML other m 2023-04-21T15:06:09.40
IV.GIZZ.HHE. ML:1.7 0.0003445 0.72 AML other m 2023-04-21T15:06:09.60
IV.CAR1.HNE. ML:1.4 0.00019700000000000002 0.44 AML other m 2023-04-21T15:06:09.58
IV.SELL.HHE. ML:1.1 0.00007185 0.46 AML other m 2023-04-21T15:06:11.30
IV.SELL.HHN. ML:1.0 0.000049699999999999995 0.36 AML other m 2023-04-21T15:06:11.92
IV.CELI.HHN. ML:1.5 0.00013350000000000002 1.7 AML other m 2023-04-21T15:06:12.06
IV.CELI.HHE. ML:1.1 0.0000559 0.24 AML other m 2023-04-21T15:06:13.02
IV.CET2.HHE. ML:1.6 0.00007815 1.58 AML other m 2023-04-21T15:06:20.00
IV.CET2.HHN. ML:1.8 0.0001465 1.4 AML other m 2023-04-21T15:06:21.04
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