Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 12-09-2021 and time 04:06:57 (Italy) in region 2 km SW Vallelonga (VV)

A magnitude ML 2.4 earthquake occured in region: 2 km SW Vallelonga (VV), on

  • 12-09-2021 02:06:57 (UTC)
  • 12-09-2021 04:06:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6360, 16.2800 at 9 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
Vallelonga VV 2 706 706
Vazzano VV 3 1067 1773
Pizzoni VV 3 1143 2916
San Nicola da Crissa VV 3 1335 4251
Simbario VV 6 966 5217
Spadola VV 6 825 6042
Soriano Calabro VV 6 2421 8463
Sorianello VV 6 1176 9639
Capistrano VV 6 1042 10681
Brognaturo VV 7 735 11416
Filogaso VV 7 1417 12833
Gerocarne VV 7 2248 15081
Serra San Bruno VV 8 6734 21815
Torre di Ruggiero CZ 8 1033 22848
Monterosso Calabro VV 9 1729 24577
Cardinale CZ 9 2188 26765
Arena VV 10 1456 28221
Dasà VV 11 1208 29429
Maierato VV 11 2188 31617
Acquaro VV 12 2484 34101
Chiaravalle Centrale CZ 13 5759 39860
Polia VV 13 1023 40883
Sant'Onofrio VV 14 3067 43950
Mongiana VV 14 740 44690
Stefanaconi VV 14 2494 47184
San Vito sullo Ionio CZ 14 1811 48995
Argusto CZ 15 522 49517
Cenadi CZ 15 563 50080
Pizzo VV 15 9278 59358
San Gregorio d'Ippona VV 15 2527 61885
Francica VV 16 1651 63536
Francavilla Angitola VV 16 1939 65475
Olivadi CZ 16 529 66004
Vibo Valentia VV 16 33941 99945
Dinami VV 16 2168 102113
Filadelfia VV 17 5384 107497
Gagliato CZ 17 505 108002
Centrache CZ 17 401 108403
Fabrizia VV 17 2195 110598
San Pietro di Caridà RC 18 1195 111793
San Sostene CZ 18 1370 113163
Satriano CZ 18 3448 116611
Davoli CZ 18 5607 122218
San Costantino Calabro VV 18 2239 124457
Petrizzi CZ 19 1131 125588
Nardodipace VV 19 1305 126893
Mileto VV 19 6763 133656
Ionadi VV 20 4238 137894
Palermiti CZ 20 1213 139107

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km S of Lamezia Terme (70714 inhabitants)
41 Km SW of Catanzaro (90612 inhabitants)
73 Km S of Cosenza (67546 inhabitants)
80 Km NE of Messina (238439 inhabitants)
81 Km NE of Reggio di Calabria (183035 inhabitants)
89 Km SW 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 2.4 2021-09-12
02:06:57		 38.6355 16.28 9 2022-03-30
13:04:06		 Bollettino Sismico Italiano INGV 95509761
Reviewed
Rev100 		ML 2.4 2021-09-12
02:06:57		 38.6407 16.2792 6 2021-09-12
02:14:41		 Sala Sismica INGV-Roma 95323451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-12 02:06:57 ± 0.11
Latitude 38.6355 ± 0.0045
Longitude 16.2800 ± 0.0092
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95509761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 723
Semi-minor axis of confidence ellipse (meter) 416
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.57831
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 95323451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-12 02:14:41

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 95509761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-23 01:32:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.COLB.HHZ. 2021-09-12T02:08:16.95 3.0 undecidable manual Sn 1.49 0
IV.SAMA.EHZ. 2021-09-12T02:08:12.66 3.0 undecidable manual Pg 10.77 0
HL.VLS.HHZ. 2021-09-12T02:07:47.67 3.0 undecidable manual Pn -3.13 0
OT.OT12.EHZ. 2021-09-12T02:07:47.70 3.0 positive manual Pn 2.54 0
IV.SIRI.HHZ. 2021-09-12T02:07:25.05 0.6 undecidable manual P 348 175.1913 50 -1.33 22
IV.SPS2.HHZ. 2021-09-12T02:07:20.36 0.3 undecidable manual S 4 72.8715 50 0.3 66
IV.CAR1.HHZ. 2021-09-12T02:07:19.42 0.3 undecidable manual S 355 68.7756 50 0.46 65
IV.GRIS.EHZ. 2021-09-12T02:07:18.34 0.3 undecidable manual P 343 127.9719 50 -0.76 51
IV.SOI.EHZ. 2021-09-12T02:07:17.77 0.3 undecidable manual S 198 65.3901 50 -0.28 68
IV.SERS.HHZ. 2021-09-12T02:07:15.54 0.3 undecidable manual S 38 56.6988 50 -0.2 70
IV.CET2.HHZ. 2021-09-12T02:07:15.36 0.3 undecidable manual P 344 103.0191 50 0.11 65
IV.LADO.EHE. 2021-09-12T02:07:14.76 1.0 undecidable manual P 40 93.9393 50 0.91 17
IV.IST3.HHZ. 2021-09-12T02:07:14.08 0.3 undecidable manual P 282 92.6406 50 0.42 62
IV.SELL.HHZ. 2021-09-12T02:07:13.98 0.3 undecidable manual S 38 48.9177 50 0.33 69
IV.CELI.HHE. 2021-09-12T02:07:13.13 0.1 undecidable manual P 13 87.3459 50 0.28 86
IV.MTTG.HHZ. 2021-09-12T02:07:12.90 0.3 undecidable manual P 216 86.4468 50 0.2 66
IV.MSRU.HHZ. 2021-09-12T02:07:11.51 0.1 undecidable manual P 239 78.6657 50 0 93
IV.GIZZ.HHZ. 2021-09-12T02:07:10.49 0.3 undecidable manual S 351 38.7279 50 -0.44 69
IV.SPS2.HHZ. 2021-09-12T02:07:10.68 0.3 undecidable manual P 4 72.8715 50 0.06 70
IV.CAR1.HHZ. 2021-09-12T02:07:10.25 0.3 undecidable manual P 355 68.7756 50 0.26 67
IV.SOI.EHZ. 2021-09-12T02:07:09.40 0.1 undecidable manual P 198 65.3901 50 -0.06 94
IV.JOPP.HNZ. 2021-09-12T02:07:09.58 0.3 undecidable manual S 265 34.3434 50 -0.18 73
IV.SERS.HHZ. 2021-09-12T02:07:07.84 0.3 undecidable manual P 38 56.6988 50 -0.29 69
IV.PLAC.HHZ. 2021-09-12T02:07:06.71 0.6 undecidable manual S 146 24.753 110 -0.18 50
IV.GRI.EHZ. 2021-09-12T02:07:06.16 0.6 undecidable manual S 30 23.9538 111 -0.47 47
IV.SELL.HHZ. 2021-09-12T02:07:06.74 0.1 undecidable manual P 38 48.9177 50 -0.18 95
IV.GIZZ.HHZ. 2021-09-12T02:07:05.17 0.1 undecidable manual P 351 38.7279 50 -0.18 97
IV.JOPP.HNZ. 2021-09-12T02:07:04.85 0.1 negative manual P 265 34.3434 50 0.18 98
IV.GRI.EHZ. 2021-09-12T02:07:03.01 0.1 negative manual P 30 23.9538 111 0.15 100
IV.PLAC.HHZ. 2021-09-12T02:07:03.24 0.1 undecidable manual P 146 24.753 110 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HHE. ML:2.5 0.001905 1.3 AML other m 2021-09-12T02:07:06.86
IV.PLAC.HNN. ML:2.9 0.004550000000000001 1.64 AML other m 2021-09-12T02:07:06.97
IV.PLAC.HNE. ML:2.9 0.004804999999999999 1.4 AML other m 2021-09-12T02:07:07.96
IV.GRI.EHN. ML:2.6 0.002745 0.3 AML other m 2021-09-12T02:07:07.76
IV.PLAC.HHN. ML:2.8 0.004305 1.52 AML other m 2021-09-12T02:07:07.91
IV.GRI.EHE. ML:2.6 0.00244 0.3 AML other m 2021-09-12T02:07:09.10
IV.JOPP.HHE. ML:2.2 0.0006115 0.38 AML other m 2021-09-12T02:07:10.25
IV.JOPP.HNE. ML:2.4 0.0010270000000000001 0.48 AML other m 2021-09-12T02:07:10.32
IV.JOPP.HHN. ML:2.5 0.001335 0.26 AML other m 2021-09-12T02:07:10.84
IV.JOPP.HNN. ML:2.5 0.001245 0.26 AML other m 2021-09-12T02:07:10.85
IV.SERS.HHE. ML:2.1 0.00028849999999999997 0.34 AML other m 2021-09-12T02:07:20.33
IV.SERS.HNN. ML:2.1 0.0002925 0.34 AML other m 2021-09-12T02:07:20.33
IV.CAR1.HHE. ML:2.5 0.0005449999999999999 0.34 AML other m 2021-09-12T02:07:21.64
IV.SERS.HHN. ML:2.0 0.000243 0.44 AML other m 2021-09-12T02:07:21.97
IV.SERS.HNE. ML:2.1 0.000277 0.46 AML other m 2021-09-12T02:07:21.76
IV.CAR1.HNE. ML:2.6 0.0007955 1 AML other m 2021-09-12T02:07:22.09
IV.SOI.EHE. ML:2.2 0.00027049999999999996 0.38 AML other m 2021-09-12T02:07:22.45
IV.CAR1.HNN. ML:2.6 0.000651 0.82 AML other m 2021-09-12T02:07:23.69
IV.CAR1.HHN. ML:2.6 0.000656 0.84 AML other m 2021-09-12T02:07:23.70
IV.SOI.EHN. ML:2.1 0.000257 0.6 AML other m 2021-09-12T02:07:23.29
IV.SELL.HHN. ML:1.8 0.000184 0.88 AML other m 2021-09-12T02:07:23.91
IV.SPS2.HHE. ML:2.0 0.00017199999999999998 0.7 AML other m 2021-09-12T02:07:23.49
IV.SPS2.HHN. ML:2.3 0.00033699999999999995 0.34 AML other m 2021-09-12T02:07:23.69
IV.SELL.HNN. ML:2.4 0.0006025000000000001 1.48 AML other m 2021-09-12T02:07:24.91
IV.SELL.HNE. ML:2.3 0.0005949999999999999 0.46 AML other m 2021-09-12T02:07:24.22
IV.SELL.HHE. ML:1.9 0.00019600000000000002 0.46 AML other m 2021-09-12T02:07:24.22
IV.MSRU.HHE. ML:2.7 0.000689 1.48 AML other m 2021-09-12T02:07:25.89
IV.MSRU.HHN. ML:2.5 0.000423 0.24 AML other m 2021-09-12T02:07:25.56
IV.IST3.HNN. ML:2.9 0.0009725 0.56 AML other m 2021-09-12T02:07:30.54
IV.IST3.HHN. ML:3.0 0.0010249999999999999 0.6 AML other m 2021-09-12T02:07:30.54
IV.CET2.HHN. ML:2.8 0.0005885 0.32 AML other m 2021-09-12T02:07:30.75
IV.MTTG.HHE. ML:2.3 0.00026549999999999995 0.5 AML other m 2021-09-12T02:07:31.62
IV.IST3.HNE. ML:2.9 0.0008629999999999999 1.34 AML other m 2021-09-12T02:07:32.75
IV.IST3.HHE. ML:2.9 0.000972 1.34 AML other m 2021-09-12T02:07:32.75
IV.CET2.HHE. ML:2.5 0.000319 0.66 AML other m 2021-09-12T02:07:32.35
IV.SIRI.HHE. ML:2.0 0.0000345 0.48 AML other m 2021-09-12T02:07:33.08
IV.GRIS.EHN. ML:2.2 0.000118 1.24 AML other m 2021-09-12T02:07:38.82
IV.MTTG.HHN. ML:2.4 0.0003 1.36 AML other m 2021-09-12T02:07:39.73
IV.GRIS.EHE. ML:2.4 0.000155 0.72 AML other m 2021-09-12T02:07:39.39
IV.SIRI.HHN. ML:2.3 0.00007664999999999999 0.52 AML other m 2021-09-12T02:07:52.16
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
Waveforms Seismic signals in miniseed + resp format Download