Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 26-12-2021 and time 00:28:35 (Italy) in region 3 km W Mirabella Eclano (AV)

A magnitude ML 1.6 earthquake occured in region: 3 km W Mirabella Eclano (AV), on

  • 25-12-2021 23:28:35 (UTC)
  • 26-12-2021 00:28:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.0500, 14.9650 at 15 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
Mirabella Eclano AV 3 7684 7684
Venticano AV 4 2537 10221
Taurasi AV 5 2377 12598
Sant'Angelo all'Esca AV 5 801 13399
Torre Le Nocelle AV 5 1324 14723
Fontanarosa AV 6 3170 17893
Montemiletto AV 6 5313 23206
Pietradefusi AV 6 2348 25554
Bonito AV 7 2448 28002
Luogosano AV 7 1187 29189
Lapio AV 7 1572 30761
Apice BN 8 5686 36447
Grottaminarda AV 8 8137 44584
Calvi BN 9 2682 47266
San Nazzaro BN 9 884 48150
Montefusco AV 9 1338 49488
San Giorgio del Sannio BN 9 10022 59510
Melito Irpino AV 10 1920 61430
Gesualdo AV 10 3516 64946
San Mango sul Calore AV 10 1185 66131
Santa Paolina AV 10 1256 67387
Paternopoli AV 10 2384 69771
San Martino Sannita BN 11 1230 71001
Montefalcione AV 12 3359 74360
Pratola Serra AV 12 3764 78124
San Nicola Manfredi BN 12 3722 81846
Frigento AV 12 3780 85626
Tufo AV 13 889 86515
Torrioni AV 13 549 87064
Prata di Principato Ultra AV 13 2944 90008
Sturno AV 13 3080 93088
Castelvetere sul Calore AV 13 1615 94703
Sant'Arcangelo Trimonte BN 14 573 95276
Sant'Angelo a Cupolo BN 14 4325 99601
Villamaina AV 14 995 100596
Chiusano di San Domenico AV 14 2277 102873
Petruro Irpino AV 14 349 103222
Candida AV 14 1147 104369
Chianche AV 15 475 104844
Paduli BN 15 3978 108822
Castelfranci AV 15 2041 110863
Montemarano AV 15 2851 113714
Parolise AV 15 663 114377
Manocalzati AV 15 3160 117537
San Potito Ultra AV 16 1558 119095
Ariano Irpino AV 16 22700 141795
Salza Irpina AV 16 772 142567
Sorbo Serpico AV 16 583 143150
Montefredane AV 16 2297 145447
Flumeri AV 16 2963 148410
Altavilla Irpina AV 16 4196 152606
Ceppaloni BN 17 3415 156021
Montecalvo Irpino AV 17 3725 159746
Grottolella AV 17 1869 161615
Torella dei Lombardi AV 17 2144 163759
San Leucio del Sannio BN 18 3106 166865
Benevento BN 18 60091 226956
Atripalda AV 18 11020 237976
Villanova del Battista AV 18 1690 239666
Arpaise BN 19 761 240427
Castel Baronia AV 19 1129 241556
Capriglia Irpina AV 19 2398 243954
Pietrelcina BN 19 3114 247068
Santo Stefano del Sole AV 19 2208 249276
Buonalbergo BN 19 1730 251006
Volturara Irpina AV 19 3289 254295
San Nicola Baronia AV 20 771 255066

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of Benevento (60091 inhabitants)
21 Km NE of Avellino (54857 inhabitants)
44 Km NE of Cava de' Tirreni (53659 inhabitants)
45 Km NE of Salerno (135261 inhabitants)
49 Km N of Battipaglia (50786 inhabitants)
50 Km NE of Scafati (50787 inhabitants)
51 Km E of Acerra (59573 inhabitants)
53 Km E of Caserta (76326 inhabitants)
57 Km NE of Castellammare di Stabia (66466 inhabitants)
57 Km E of Afragola (65057 inhabitants)
57 Km E of Portici (55274 inhabitants)
58 Km NE of Torre del Greco (86275 inhabitants)
58 Km E of Ercolano (53709 inhabitants)
59 Km E of Casoria (77642 inhabitants)
64 Km E of Aversa (53047 inhabitants)
64 Km E of Napoli (974074 inhabitants)
65 Km E of Giugliano in Campania (122974 inhabitants)
67 Km SW of Foggia (151991 inhabitants)
67 Km E of Marano di Napoli (59874 inhabitants)
77 Km E of Pozzuoli (81661 inhabitants)
79 Km SW of San Severo (53905 inhabitants)
82 Km W of Cerignola (58396 inhabitants)
84 Km NW of Potenza (67122 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 2021-12-25
23:28:35		 41.0502 14.9648 15 2022-03-30
13:04:26		 Bollettino Sismico Italiano INGV 99315681
Reviewed
Rev100 		ML 1.9 2021-12-25
23:28:35		 41.0507 14.9628 16 2021-12-25
23:52:51		 Sala Sismica INGV-Roma 98984101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-25 23:28:35 ± 0.14
Latitude 41.0502 ± 0.0072
Longitude 14.9648 ± 0.0083
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99315681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 704
Semi-minor axis of confidence ellipse (meter) 656
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 99315681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-04 10:41:05

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 98984101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-25 23:52:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SACR.HHZ. 2021-12-25T23:28:49.18 3.0 undecidable manual P 0
IV.VITU.HHZ. 2021-12-25T23:28:46.02 0.3 undecidable manual S 298 31.6461 101 -0.05 73
IV.MCRV.HHZ. 2021-12-25T23:28:46.37 0.3 undecidable manual S 150 34.2435 99 -0.4 66
IX.NSC3.EHZ.02 2021-12-25T23:28:44.83 0.3 undecidable manual S 150 26.1516 105 0.18 72
IX.SALI.HNZ.01 2021-12-25T23:28:44.33 0.3 undecidable manual S 126 22.4553 109 0.64 64
IV.SNAL.HNN. 2021-12-25T23:28:44.64 0.3 undecidable manual S 124 24.6531 106 0.37 69
IV.CAFE.HHZ. 2021-12-25T23:28:44.22 0.3 undecidable manual S 96 22.8549 108 0.41 68
IV.PSB1.HHZ. 2021-12-25T23:28:43.81 0.3 undecidable manual S 326 23.1546 108 -0.06 74
IT.AVL.HNZ. 2021-12-25T23:28:43.81 0.3 undecidable manual S 227 20.5683 111 0.6 66
IV.MCRV.HHZ. 2021-12-25T23:28:41.53 0.3 undecidable manual P 150 34.2435 99 -0.3 68
IX.LIO3.HHZ.02 2021-12-25T23:28:41.15 3.0 undecidable manual P 0
IV.PAOL.HHN. 2021-12-25T23:28:41.97 0.3 undecidable manual P 267 33.3444 100 0.28 69
IV.VITU.HHZ. 2021-12-25T23:28:41.22 0.3 undecidable manual P 298 31.6461 101 -0.21 70
IV.MRB1.HHZ. 2021-12-25T23:28:40.60 0.3 undecidable manual S 2 8.0808 145 0.05 74
IX.NSC3.EHZ.02 2021-12-25T23:28:40.16 0.3 undecidable manual P 150 26.1516 105 -0.45 67
IX.SALI.HNZ.01 2021-12-25T23:28:40.11 0.1 undecidable manual P 126 22.4553 109 0.05 98
IV.SNAL.HNN. 2021-12-25T23:28:40.20 0.3 undecidable manual P 124 24.6531 106 -0.19 71
IV.CAFE.HHZ. 2021-12-25T23:28:39.78 0.3 undecidable manual P 96 22.8549 108 -0.34 69
IX.BENI.HNE.01 2021-12-25T23:28:39.91 0.3 undecidable manual P 299 18.3705 115 0.43 68
IX.LGS3.HNN.01 2021-12-25T23:28:39.71 0.3 undecidable manual S 163 7.3815 147 -0.74 62
IT.AVL.HNZ. 2021-12-25T23:28:39.81 0.3 undecidable manual P 227 20.5683 111 0.03 74
IV.PSB1.HHZ. 2021-12-25T23:28:39.94 0.3 undecidable manual P 326 23.1546 108 -0.22 71
IX.LGS3.HNN.01 2021-12-25T23:28:38.12 0.3 undecidable manual P 163 7.3815 147 -0.07 75
IV.MRB1.HHZ. 2021-12-25T23:28:38.29 0.1 undecidable manual P 2 8.0808 145 0.05 100
IX.SSB3.HHZ.02 2021-12-25T23:28:34.45 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRB1.HNE. ML:2.0 0.0010539999999999998 0.2 AML other m 2021-12-25T23:28:41.53
IV.MRB1.HHE. ML:2.0 0.0011099999999999999 0.2 AML other m 2021-12-25T23:28:41.53
IV.MRB1.HNN. ML:1.9 0.0007579029500000001 0.2176 AML other m 2021-12-25T23:28:42.21
IV.MRB1.HHN. ML:1.9 0.0008063033 0.2176 AML other m 2021-12-25T23:28:42.32
IX.NSC3.EHN.02 ML:1.7 0.00026250000000000004 0.12 AML other m 2021-12-25T23:28:45.19
IX.NSC3.EHE.02 ML:1.6 0.00021349999999999999 0.16 AML other m 2021-12-25T23:28:46.11
IV.MCRV.HHE. ML:1.5 0.00013174288499999997 0.1792 AML other m 2021-12-25T23:28:47.35
IV.MCRV.HHN. ML:1.8 0.00022625375 0.1408 AML other m 2021-12-25T23:28:47.78
IV.CAFE.HHE. ML:1.3 0.000116014755 0.2944 AML other m 2021-12-25T23:28:44.00
IV.CAFE.HNE. ML:1.3 0.00012295509999999998 0.7296 AML other m 2021-12-25T23:28:51.67
IV.PSB1.HNN. ML:1.2 0.000086151745 0.512 AML other m 2021-12-25T23:28:48.69
IV.PSB1.HNE. ML:1.4 0.000161855695 1.1264 AML other m 2021-12-25T23:28:50.94
IV.PSB1.HHE. ML:1.1 0.00008231321 0.2304 AML other m 2021-12-25T23:28:45.40
IV.PSB1.HHN. ML:1.1 0.000072309705 0.4992 AML other m 2021-12-25T23:28:48.69
IX.NSC3.HNN.01 ML:1.7 0.000254776665 0.128 AML other m 2021-12-25T23:28:45.18
IX.NSC3.HNE.01 ML:1.6 0.00018855665 0.1536 AML other m 2021-12-25T23:28:46.04
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