Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 21-12-2021 and time 19:24:42 (UTC) in region 4 km N Zungoli (AV)

A magnitude ML 1.9 earthquake occured in region: 4 km N Zungoli (AV), on

  • 21-12-2021 19:24:42 (UTC)
  • 21-12-2021 20:24:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.1670, 15.1940 at 23 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
Zungoli AV 4 1099 1099
Monteleone di Puglia FG 6 1021 2120
Villanova del Battista AV 6 1690 3810
Savignano Irpino AV 7 1140 4950
Ariano Irpino AV 9 22700 27650
Panni FG 9 804 28454
Greci AV 10 691 29145
Anzano di Puglia FG 10 1284 30429
Montaguto AV 10 423 30852
Flumeri AV 11 2963 33815
San Sossio Baronia AV 11 1643 35458
Accadia FG 12 2376 37834
San Nicola Baronia AV 12 771 38605
Scampitella AV 12 1234 39839
Vallesaccarda AV 12 1386 41225
Castel Baronia AV 13 1129 42354
Melito Irpino AV 14 1920 44274
Trevico AV 14 993 45267
Montecalvo Irpino AV 14 3725 48992
Orsara di Puglia FG 14 2767 51759
Vallata AV 15 2714 54473
Grottaminarda AV 15 8137 62610
Carife AV 16 1408 64018
Bovino FG 16 3309 67327
Sant'Agata di Puglia FG 16 1959 69286
Castelfranco in Miscano BN 17 916 70202
Deliceto FG 17 3828 74030
Sturno AV 17 3080 77110
Casalbore AV 18 1800 78910
Bonito AV 18 2448 81358
Faeto FG 18 627 81985
Celle di San Vito FG 18 166 82151
Ginestra degli Schiavoni BN 18 476 82627
Frigento AV 19 3780 86407
Buonalbergo BN 19 1730 88137
Castelluccio Valmaggiore FG 20 1318 89455

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Benevento (60091 inhabitants)
44 Km NE of Avellino (54857 inhabitants)
44 Km SW of Foggia (151991 inhabitants)
60 Km S of San Severo (53905 inhabitants)
60 Km W of Cerignola (58396 inhabitants)
65 Km N of Battipaglia (50786 inhabitants)
65 Km NE of Salerno (135261 inhabitants)
66 Km NE of Cava de' Tirreni (53659 inhabitants)
73 Km NE of Scafati (50787 inhabitants)
73 Km E of Caserta (76326 inhabitants)
73 Km E of Acerra (59573 inhabitants)
78 Km NW of Potenza (67122 inhabitants)
79 Km E of Afragola (65057 inhabitants)
79 Km SW of Manfredonia (57279 inhabitants)
80 Km NE of Castellammare di Stabia (66466 inhabitants)
80 Km E of Portici (55274 inhabitants)
81 Km E of Casoria (77642 inhabitants)
81 Km NE of Torre del Greco (86275 inhabitants)
82 Km NE of Ercolano (53709 inhabitants)
86 Km E of Aversa (53047 inhabitants)
87 Km E of Napoli (974074 inhabitants)
87 Km E of Giugliano in Campania (122974 inhabitants)
89 Km E of Marano di Napoli (59874 inhabitants)
92 Km W of Barletta (94814 inhabitants)
93 Km W of Andria (100440 inhabitants)
99 Km E of Pozzuoli (81661 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 1.9 2021-12-21
19:24:42		 41.1673 15.194 23 2022-03-30
13:04:31		 Bollettino Sismico Italiano INGV 99868521
Reviewed
Rev100 		ML 1.9 2021-12-21
19:24:42		 41.1695 15.2013 26 2021-12-21
19:31:59		 Sala Sismica INGV-Roma 98797451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-21 19:24:42 ± 0.14
Latitude 41.1673 ± 0.0063
Longitude 15.1940 ± 0.0096
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99868521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 770
Semi-minor axis of confidence ellipse (meter) 336
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09447
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 99868521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-06 11:00:01

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 98797451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-21 19:31:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HNZ. 2021-12-21T19:25:19.75 3.0 undecidable manual Sn -0.06 0
IV.AMUR.HHZ. 2021-12-21T19:25:04.21 0.3 undecidable manual P 103 121.4895 96 1.13 44
IV.IOCA.HHZ. 2021-12-21T19:25:04.82 3.0 positive manual P 4.09 0
IV.VULT.HHZ. 2021-12-21T19:24:58.10 0.6 undecidable manual S 124 42.4242 111 0.88 38
IV.MCRV.HHZ. 2021-12-21T19:24:57.10 0.3 undecidable manual S 183 42.7239 111 -0.19 70
IV.MRVN.HHZ. 2021-12-21T19:24:57.49 0.3 undecidable manual P 98 84.5487 99 0.05 68
IV.SGRT.HHZ. 2021-12-21T19:24:56.24 0.3 undecidable manual P 35 79.5648 100 -0.44 62
IV.PALZ.HHZ. 2021-12-21T19:24:55.18 0.3 undecidable manual P 111 68.6757 102 0.14 68
IX.NSC3.EHZ.02 2021-12-21T19:24:55.90 0.3 undecidable manual S 190 36.0417 115 0.25 71
IV.BSSO.HHE. 2021-12-21T19:24:54.54 0.3 undecidable manual P 310 65.2902 103 0.01 70
IX.LIO3.HHZ.02 2021-12-21T19:24:54.20 0.3 undecidable manual S 182 30.0477 120 -0.01 74
IV.PSB1.HHZ. 2021-12-21T19:24:54.80 0.3 undecidable manual S 281 32.5452 118 -0.02 75
IV.SNAL.HHZ. 2021-12-21T19:24:53.80 0.1 undecidable manual S 177 26.8509 124 0.3 95
IX.SALI.HNE.01 2021-12-21T19:24:53.90 0.6 undecidable manual S 183 26.3514 124 0.51 45
IV.MOCO.HHZ. 2021-12-21T19:24:53.00 0.3 undecidable manual S 352 22.6551 129 0.4 69
OT.OT05.EHZ. 2021-12-21T19:24:53.65 0.3 undecidable manual P 32 64.2912 103 -0.72 58
IV.MRB1.HHZ. 2021-12-21T19:24:52.30 0.6 undecidable manual S 255 19.4694 134 0.34 47
IV.GATE.HNN. 2021-12-21T19:24:52.64 0.3 undecidable manual P 328 45.0216 109 1.12 50
IV.VITU.HHZ. 2021-12-21T19:24:52.79 0.3 undecidable manual P 272 47.1195 108 0.97 54
IX.RSF3.HHZ.02 2021-12-21T19:24:52.20 0.6 undecidable manual S 184 22.5552 129 -0.37 47
IX.SNR3.EHZ.02 2021-12-21T19:24:51.92 0.3 undecidable manual P 180 47.9187 108 -0.01 72
IV.SACR.HNN. 2021-12-21T19:24:51.37 1.0 undecidable manual P 302 48.0186 108 -0.59 21
IV.VULT.HHZ. 2021-12-21T19:24:51.35 0.3 undecidable manual P 124 42.4242 111 0.21 71
IV.CAFE.HHZ. 2021-12-21T19:24:51.20 0.6 undecidable manual S 167 15.873 141 -0.1 50
IX.RDM3.HHZ.02 2021-12-21T19:24:51.92 0.3 undecidable manual P 138 43.2234 110 0.67 63
IX.SSB3.HHZ.02 2021-12-21T19:24:51.00 0.6 undecidable manual S 163 10.2786 153 0.52 46
IX.NSC3.EHZ.02 2021-12-21T19:24:50.15 0.1 positive manual P 190 36.0417 115 -0.09 97
IX.CLT3.EHN.02 2021-12-21T19:24:50.49 0.1 undecidable manual P 149 34.2435 116 0.52 90
IV.SGTA.HHZ. 2021-12-21T19:24:50.90 0.6 undecidable manual S 104 14.6742 143 -0.21 49
IV.MCRV.HHZ. 2021-12-21T19:24:50.83 0.1 negative manual P 183 42.7239 111 -0.35 90
IV.PSB1.HHZ. 2021-12-21T19:24:49.50 0.1 undecidable manual P 281 32.5452 118 -0.25 95
IX.SALI.HNE.01 2021-12-21T19:24:48.92 0.1 undecidable manual P 183 26.3514 124 -0.01 100
IV.MOCO.HHZ. 2021-12-21T19:24:48.41 0.3 undecidable manual P 352 22.6551 129 -0.07 75
IX.RSF3.HHZ.02 2021-12-21T19:24:48.09 0.1 undecidable manual P 184 22.5552 129 -0.37 93
IV.SNAL.HHZ. 2021-12-21T19:24:48.81 0.1 negative manual P 177 26.8509 124 -0.18 96
IX.LIO3.HHZ.02 2021-12-21T19:24:48.88 0.1 undecidable manual P 182 30.0477 120 -0.52 88
IX.SSB3.HHZ.02 2021-12-21T19:24:47.09 0.1 undecidable manual P 163 10.2786 153 -0.16 100
IV.SGTA.HHZ. 2021-12-21T19:24:47.18 0.1 positive manual P 104 14.6742 143 -0.44 93
IV.MRB1.HHZ. 2021-12-21T19:24:47.97 0.1 positive manual P 255 19.4694 134 -0.14 99
IT.ORP.HGE. 2021-12-21T19:24:47.04 0.1 undecidable manual P 25 13.7751 145 -0.49 93
IV.CAFE.HHZ. 2021-12-21T19:24:47.45 0.1 negative manual P 167 15.873 141 -0.27 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGTA.HHN. ML:1.8 0.00033999999999999997 1.36 AML other m 2021-12-21T19:24:51.14
IV.SGTA.HNN. ML:1.8 0.0003765 1.36 AML other m 2021-12-21T19:24:51.15
IX.SSB3.HHE.02 ML:1.8 0.0004375 0.4 AML other m 2021-12-21T19:24:51.09
IV.SGTA.HHE. ML:1.9 0.0004365 0.22 AML other m 2021-12-21T19:24:51.81
IV.SGTA.HNE. ML:1.8 0.00040500000000000003 0.22 AML other m 2021-12-21T19:24:51.81
IV.CAFE.HHE. ML:2.0 0.0005915 0.9 AML other m 2021-12-21T19:24:51.96
IV.CAFE.HNE. ML:2.0 0.0005835 0.36 AML other m 2021-12-21T19:24:51.97
IV.CAFE.HHN. ML:1.8 0.0003285 1.42 AML other m 2021-12-21T19:24:52.02
IV.CAFE.HNN. ML:1.7 0.00030649999999999997 1.42 AML other m 2021-12-21T19:24:52.03
IX.RSF3.HHN.02 ML:2.1 0.000661 0.08 AML other m 2021-12-21T19:24:52.47
IX.RSF3.HNN.01 ML:2.1 0.000666 0.08 AML other m 2021-12-21T19:24:52.47
IX.RSF3.HHE.02 ML:2.0 0.0005115 0.16 AML other m 2021-12-21T19:24:52.56
IV.MRB1.HHE. ML:2.2 0.0007664999999999999 0.22 AML other m 2021-12-21T19:24:52.56
IV.MRB1.HNE. ML:2.2 0.0007484999999999999 0.2 AML other m 2021-12-21T19:24:52.57
IX.RSF3.HNE.01 ML:2.0 0.0004605 0.1 AML other m 2021-12-21T19:24:52.55
IV.SNAL.HNN. ML:1.9 0.000348 0.32 AML other m 2021-12-21T19:24:53.97
IV.SNAL.HHN. ML:1.9 0.0003445 0.32 AML other m 2021-12-21T19:24:53.97
IV.MOCO.HNN. ML:1.4 0.0001109 0.7 AML other m 2021-12-21T19:24:54.16
IV.MOCO.HHN. ML:1.3 0.00008925 0.32 AML other m 2021-12-21T19:24:54.17
IV.SNAL.HHE. ML:1.9 0.0003525 0.28 AML other m 2021-12-21T19:24:54.09
IV.SNAL.HNE. ML:1.9 0.00034199999999999996 0.28 AML other m 2021-12-21T19:24:54.09
IV.PSB1.HHE. ML:1.8 0.00020850000000000003 0.16 AML other m 2021-12-21T19:24:55.18
IV.MRB1.HHN. ML:2.0 0.0005495 0.34 AML other m 2021-12-21T19:24:55.20
IV.MRB1.HNN. ML:2.0 0.0005344999999999999 0.36 AML other m 2021-12-21T19:24:55.20
IX.SSB3.HHN.02 ML:1.8 0.000386 0.8 AML other m 2021-12-21T19:24:55.33
IV.PSB1.HNN. ML:1.5 0.000114 0.4 AML other m 2021-12-21T19:24:55.15
IV.PSB1.HNE. ML:1.8 0.00022250000000000001 0.86 AML other m 2021-12-21T19:24:55.69
IX.NSC3.EHN.02 ML:2.0 0.00030600000000000007 0.98 AML other m 2021-12-21T19:24:56.26
IV.PSB1.HHN. ML:1.4 0.00009515 0.44 AML other m 2021-12-21T19:24:56.97
IX.NSC3.EHE.02 ML:2.0 0.000306 0.12 AML other m 2021-12-21T19:24:57.25
IV.MCRV.HHE. ML:1.8 0.0001995 0.28 AML other m 2021-12-21T19:24:57.85
IV.MCRV.HHN. ML:1.9 0.0002305 1.34 AML other m 2021-12-21T19:24:57.31
IV.VULT.HHN. ML:2.0 0.00026450000000000003 1.08 AML other m 2021-12-21T19:24:59.09
IV.VULT.HNN. ML:2.0 0.0003155 1.5 AML other m 2021-12-21T19:24:59.85
IV.VULT.HHE. ML:2.1 0.0003195 0.92 AML other m 2021-12-21T19:25:00.11
IV.VULT.HNE. ML:2.0 0.00029949999999999996 1.14 AML other m 2021-12-21T19:25:01.86
IX.SNR3.EHN.02 ML:2.0 0.0002585 0.92 AML other m 2021-12-21T19:25:02.10
IV.MOCO.HNE. ML:1.5 0.000145 0.5 AML other m 2021-12-21T19:25:03.71
IV.MOCO.HHE. ML:1.5 0.00014450000000000002 0.48 AML other m 2021-12-21T19:25:03.71
IX.SNR3.EHE.02 ML:1.6 0.0000918 0.2 AML other m 2021-12-21T19:25:06.10
IV.SGRT.HHE. ML:1.9 0.00011399999999999999 0.42 AML other m 2021-12-21T19:25:11.44
IV.SGRT.HHN. ML:1.9 0.0001039 0.56 AML other m 2021-12-21T19:25:11.54
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