Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 24-09-2021 and time 02:21:16 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.6 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 24-09-2021 00:21:16 (UTC)
  • 24-09-2021 02:21:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.9100, 16.0140 at 38 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 17 4028 4028
Gizzeria CZ 19 4982 9010
Nocera Terinese CZ 19 4731 13741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Lamezia Terme (70714 inhabitants)
48 Km SW of Cosenza (67546 inhabitants)
50 Km W of Catanzaro (90612 inhabitants)
89 Km NE of Messina (238439 inhabitants)
95 Km NE of Reggio di Calabria (183035 inhabitants)
98 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 1.6 2021-09-24
00:21:16		 38.9102 16.0135 38 2022-03-30
13:04:09		 Bollettino Sismico Italiano INGV 96255391
Reviewed
Rev100 		ML 1.6 2021-09-24
00:21:16		 38.9068 16.0457 38 2021-09-24
00:27:34		 Sala Sismica INGV-Roma 95802391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 00:21:16 ± 0.08
Latitude 38.9102 ± 0.0054
Longitude 16.0135 ± 0.0092
Depth (km) 38 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96255391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 838
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 32
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.27704
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 96255391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-18 13:24:07

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 95802391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 00:27:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT13.EHZ. 2021-09-24T00:22:49.95 3.0 undecidable manual Sg 13.55 0
OT.OT17.EHZ. 2021-09-24T00:22:31.35 3.0 undecidable manual Sn -1.37 0
IX.SCL3.EHZ.02 2021-09-24T00:22:08.10 3.0 undecidable manual Sn -0.39 0
IV.MMN.HHE. 2021-09-24T00:21:47.59 0.6 undecidable manual S 359 108.8133 54 0.02 45
IV.MPNC.HHZ. 2021-09-24T00:21:45.63 0.3 undecidable manual S 214 102.3198 54 -0.53 61
IV.GRIS.EHZ. 2021-09-24T00:21:43.34 0.6 undecidable manual S 352 93.1401 54 -0.85 35
IV.MSRU.HHZ. 2021-09-24T00:21:41.80 0.6 undecidable manual S 212 84.0492 54 -0.42 43
MN.TIP.HHN. 2021-09-24T00:21:39.68 0.6 undecidable manual S 65 70.7736 54 0.31 45
IV.MGR.HHZ. 2021-09-24T00:21:39.24 0.3 undecidable manual P 344 141.747 54 0.57 55
IV.CELI.HHZ. 2021-09-24T00:21:38.80 0.6 undecidable manual S 38 69.2751 54 -0.25 46
IV.CET2.HHZ. 2021-09-24T00:21:38.11 0.3 undecidable manual S 356 68.7756 54 -0.84 56
IV.AIO.HHE. 2021-09-24T00:21:36.72 0.3 undecidable manual P 213 124.2867 54 0.22 62
IV.SELL.HHZ. 2021-09-24T00:21:35.96 0.6 undecidable manual S 81 53.6019 121 0.33 46
IV.FERC.HHZ. 2021-09-24T00:21:34.68 0.6 undecidable manual S 169 51.7038 122 -0.52 45
IV.SPS2.HHZ. 2021-09-24T00:21:34.34 0.6 undecidable manual S 33 50.7159 123 -0.63 42
IV.MMN.HHE. 2021-09-24T00:21:34.91 0.3 undecidable manual P 359 108.8133 54 0.33 63
IV.MPNC.HHZ. 2021-09-24T00:21:33.65 0.3 undecidable manual P 214 102.3198 54 -0.11 66
IV.MILZ.HHN. 2021-09-24T00:21:33.31 0.3 undecidable manual P 224 98.124 54 0.07 68
IV.SOI.EHN. 2021-09-24T00:21:32.82 0.1 undecidable manual P 178 92.9403 54 0.22 88
IV.CAR1.HHZ. 2021-09-24T00:21:32.74 0.6 undecidable manual S 24 41.7249 129 -0.28 48
IV.GRIS.EHZ. 2021-09-24T00:21:32.66 0.3 undecidable manual P 352 93.1401 54 0.04 69
IV.GRI.EHZ. 2021-09-24T00:21:31.15 0.3 undecidable manual S 105 36.4413 133 -0.8 62
IV.MSRU.HHZ. 2021-09-24T00:21:31.37 0.1 undecidable manual P 212 84.0492 54 -0.12 92
IV.JOPP.HHZ. 2021-09-24T00:21:31.90 0.6 undecidable manual S 198 35.4423 134 0.15 50
MN.TIP.HHN. 2021-09-24T00:21:30.22 0.1 undecidable manual P 65 70.7736 54 0.38 89
IV.CELI.HHZ. 2021-09-24T00:21:29.88 0.3 undecidable manual P 38 69.2751 54 0.22 69
IV.CET2.HHZ. 2021-09-24T00:21:29.62 0.1 undecidable manual P 356 68.7756 54 0.02 97
IV.SERS.HNN. 2021-09-24T00:21:28.55 0.3 undecidable manual P 76 59.8956 54 0.06 73
IV.PLAC.HHZ. 2021-09-24T00:21:28.78 0.3 undecidable manual P 144 62.9925 54 -0.09 72
IV.SELL.HHZ. 2021-09-24T00:21:27.74 0.3 undecidable manual P 81 53.6019 121 0.06 74
IV.FERC.HHZ. 2021-09-24T00:21:27.43 0.1 undecidable manual P 169 51.7038 122 0 100
IV.SPS2.HHZ. 2021-09-24T00:21:27.57 0.1 undecidable manual P 33 50.7159 123 0.27 95
IV.CAR1.HHZ. 2021-09-24T00:21:26.40 0.1 undecidable manual P 24 41.7249 129 0.22 97
IV.JOPP.HHZ. 2021-09-24T00:21:26.02 0.1 undecidable manual P 198 35.4423 134 0.58 89
IV.GRI.EHZ. 2021-09-24T00:21:25.43 0.1 undecidable manual P 105 36.4413 133 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:1.8 0.00017749999999999998 0.56 AML other m 2021-09-24T00:21:32.45
IV.JOPP.HHE. ML:1.3 0.00005035 0.16 AML other m 2021-09-24T00:21:32.53
IV.CAR1.HHN. ML:1.7 0.00011135000000000001 0.56 AML other m 2021-09-24T00:21:33.39
IV.CAR1.HHE. ML:1.4 0.0000636 0.24 AML other m 2021-09-24T00:21:34.21
IV.SPS2.HHN. ML:1.3 0.00004035 0.16 AML other m 2021-09-24T00:21:34.98
IV.SPS2.HHE. ML:1.2 0.0000277 0.4 AML other m 2021-09-24T00:21:35.07
IV.CET2.HHE. ML:1.8 0.00009155 0.74 AML other m 2021-09-24T00:21:38.76
IV.CET2.HHN. ML:2.0 0.0001505 0.86 AML other m 2021-09-24T00:21:38.86
IV.MSRU.HHN. ML:1.7 0.0000618 0.94 AML other m 2021-09-24T00:21:42.65
IV.MSRU.HHE. ML:1.8 0.0000628 1.54 AML other m 2021-09-24T00:21:48.89
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