Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 28-06-2021 and time 00:36:53 (Italy) in region 1 km W Arpaia (BN)

A magnitude ML 1.7 earthquake occured in region: 1 km W Arpaia (BN), on

  • 27-06-2021 22:36:53 (UTC)
  • 28-06-2021 00:36:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.0400, 14.5430 at 4 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
Arpaia BN 1 1992 1992
Forchia BN 1 1235 3227
Paolisi BN 3 2072 5299
Airola BN 4 8195 13494
Arienzo CE 4 5365 18859
Moiano BN 4 4094 22953
Rotondi AV 5 3591 26544
Bucciano BN 5 2100 28644
San Felice a Cancello CE 6 17568 46212
Cervinara AV 7 9658 55870
Sant'Agata de' Goti BN 7 11216 67086
Santa Maria a Vico CE 7 14022 81108
Roccarainola NA 8 7082 88190
Bonea BN 8 1448 89638
Cicciano NA 8 12906 102544
Durazzano BN 8 2230 104774
Montesarchio BN 9 13500 118274
Camposano NA 9 5333 123607
Tufino NA 9 3776 127383
Comiziano NA 10 1814 129197
Cervino CE 10 5031 134228
Avella AV 10 7890 142118
San Martino Valle Caudina AV 10 4884 147002
Sperone AV 11 3706 150708
Cimitile NA 11 7280 157988
Valle di Maddaloni CE 11 2742 160730
Baiano AV 12 4718 165448
Casamarciano NA 12 3289 168737
Tocco Caudio BN 12 1508 170245
Sirignano AV 13 2933 173178
Nola NA 13 34431 207609
Dugenta BN 13 2798 210407
Quadrelle AV 13 1865 212272
Visciano NA 13 4454 216726
Maddaloni CE 13 39166 255892
Frasso Telesino BN 13 2318 258210
Campoli del Monte Taburno BN 14 1546 259756
Pannarano BN 14 2130 261886
San Vitaliano NA 14 6461 268347
Mugnano del Cardinale AV 14 5373 273720
Melizzano BN 14 1858 275578
San Paolo Bel Sito NA 14 3513 279091
Saviano NA 14 15982 295073
Scisciano NA 14 5994 301067
Marigliano NA 15 30157 331224
Cautano BN 15 2044 333268
Roccabascerana AV 15 2354 335622
Apollosa BN 15 2658 338280
Mariglianella NA 15 7787 346067
Liveri NA 15 1607 347674
Marzano di Nola AV 16 1727 349401
Brusciano NA 17 16466 365867
Pietrastornina AV 17 1553 367420
Pago del Vallo di Lauro AV 17 1830 369250
San Marco Evangelista CE 17 6532 375782
Limatola BN 17 4073 379855
Arpaise BN 17 761 380616
Foglianise BN 17 3385 384001
Solopaca BN 17 3820 387821
Castelpoto BN 17 1254 389075
Vitulano BN 18 2944 392019
Castel Campagnano CE 18 1581 393600
Castello di Cisterna NA 18 7869 401469
Acerra NA 18 59573 461042
San Nicola la Strada CE 18 22448 483490
Castel Morrone CE 18 3858 487348
Caserta CE 18 76326 563674
Sant'Angelo a Scala AV 18 730 564404
Domicella AV 18 1862 566266
Carbonara di Nola NA 18 2429 568695
Ceppaloni BN 18 3415 572110
San Leucio del Sannio BN 19 3106 575216
Taurano AV 19 1546 576762
Palma Campania NA 19 15978 592740
Pomigliano d'Arco NA 19 39922 632662
Lauro AV 19 3509 636171
Amorosi BN 20 2797 638968
San Gennaro Vesuviano NA 20 11966 650934
Summonte AV 20 1583 652517
Casagiove CE 20 13651 666168

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Acerra (59573 inhabitants)
18 Km E of Caserta (76326 inhabitants)
23 Km W of Benevento (60091 inhabitants)
23 Km NE of Afragola (65057 inhabitants)
25 Km NW of Avellino (54857 inhabitants)
26 Km NE of Casoria (77642 inhabitants)
29 Km NE of Portici (55274 inhabitants)
29 Km E of Aversa (53047 inhabitants)
30 Km NE of Ercolano (53709 inhabitants)
31 Km E of Giugliano in Campania (122974 inhabitants)
32 Km NE of Torre del Greco (86275 inhabitants)
32 Km N of Scafati (50787 inhabitants)
33 Km NE of Napoli (974074 inhabitants)
33 Km E of Marano di Napoli (59874 inhabitants)
39 Km N of Castellammare di Stabia (66466 inhabitants)
40 Km NW of Cava de' Tirreni (53659 inhabitants)
44 Km NE of Pozzuoli (81661 inhabitants)
44 Km NW of Salerno (135261 inhabitants)
61 Km NW of Battipaglia (50786 inhabitants)
96 Km SW of Foggia (151991 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 1.7 2021-06-27
22:36:53		 41.0397 14.5427 4 2021-12-29
11:12:34		 Bollettino Sismico Italiano INGV 96291151
Reviewed
Rev100 		ML 1.7 2021-06-27
22:36:53		 41.0452 14.5288 5 2021-06-27
23:07:53		 Sala Sismica INGV-Roma 91980511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-27 22:36:53 ± 0.1
Latitude 41.0397 ± 0.0054
Longitude 14.5427 ± 0.0107
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96291151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 788
Semi-minor axis of confidence ellipse (meter) 448
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
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 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.02068
Epicentral distance of station farthest from the epicenter (degree) 0.56118
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 96291151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-06 13:51:55

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 91980511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-27 23:07:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.CMP3.HNE.02 2021-06-27T22:37:05.17 0.3 undecidable manual P 133 62.2932 50 -0.46 63
IV.PIGN.HHE. 2021-06-27T22:37:05.38 0.6 undecidable manual S 301 35.1426 97 -0.66 41
IV.BSSO.HHE. 2021-06-27T22:37:05.09 0.6 undecidable manual P 4 56.2992 50 0.38 43
IV.VTIR.HHZ. 2021-06-27T22:37:04.10 0.6 undecidable manual S 201 27.75 99 0.6 43
IV.MCRV.HHN. 2021-06-27T22:37:04.71 0.6 undecidable manual P 118 59.6958 50 -0.52 41
IV.VAGA.HHZ. 2021-06-27T22:37:03.94 0.1 undecidable manual P 328 49.0176 50 0.36 88
IV.VVDG.HHZ. 2021-06-27T22:37:03.30 0.6 undecidable manual S 204 24.753 100 0.83 39
IX.NSC3.EHE.02 2021-06-27T22:37:03.34 0.3 undecidable manual P 114 53.1024 50 -0.86 55
IV.SGG.HHE. 2021-06-27T22:37:02.17 0.6 undecidable manual P 341 40.8258 96 0.19 46
IV.VCRE.HHZ. 2021-06-27T22:37:02.90 0.6 undecidable manual S 201 26.1516 99 -0.07 49
IX.MNT3.EHE.02 2021-06-27T22:37:02.40 0.6 undecidable manual P 120 44.9217 96 -0.39 44
IV.SACR.HHN. 2021-06-27T22:37:02.50 0.1 undecidable manual P 19 41.9247 96 0.3 90
IV.VBKN.HHZ. 2021-06-27T22:37:02.80 0.6 undecidable manual S 202 25.0527 100 0.2 47
IV.MRB1.HHZ. 2021-06-27T22:37:01.86 0.3 undecidable manual P 75 36.741 97 0.69 60
IV.PSB1.HNN. 2021-06-27T22:37:00.76 0.6 undecidable manual P 48 30.2475 98 0.88 38
IV.VITU.HNZ. 2021-06-27T22:37:00.20 0.3 undecidable manual S 25 17.5713 104 0.19 72
IV.PIGN.HHE. 2021-06-27T22:37:00.00 0.1 undecidable manual P 301 35.1426 97 -0.85 76
IV.VCRE.HHZ. 2021-06-27T22:36:59.01 0.1 undecidable manual P 201 26.1516 99 -0.06 97
IV.VTIR.HHZ. 2021-06-27T22:36:59.55 0.1 undecidable manual P 201 27.75 99 0.17 95
IV.CRTO.HHZ. 2021-06-27T22:36:59.92 0.6 undecidable manual P 203 26.2515 99 0.84 39
IV.VBKN.HHZ. 2021-06-27T22:36:59.23 0.3 undecidable manual P 202 25.0527 100 0.37 69
IV.VVDG.HHZ. 2021-06-27T22:36:58.41 0.3 undecidable manual P 204 24.753 100 -0.38 69
IV.VITU.HNZ. 2021-06-27T22:36:57.29 0.3 undecidable manual P 25 17.5713 104 -0.08 74
IV.NL9.EHZ. 2021-06-27T22:36:56.21 0.3 undecidable manual P 179 13.1757 108 -0.33 71
IV.PAOL.HNZ. 2021-06-27T22:36:55.10 0.3 undecidable manual S 114 2.2977 152 -0.36 71
IV.PAOL.HNZ. 2021-06-27T22:36:54.61 0.1 undecidable manual P 114 2.2977 152 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VTIR.HHE. ML:1.4 0.00012267175 0.1664 AML other m 2021-06-27T22:37:07.26
IV.VBKN.HHN. ML:1.8 0.00034778395 0.1536 AML other m 2021-06-27T22:37:07.55
IV.VTIR.HHN. ML:1.1 0.00007278184 0.2688 AML other m 2021-06-27T22:37:07.80
IV.VBKN.HHE. ML:1.9 0.00047 0.74 AML other m 2021-06-27T22:37:08.43
IV.VCRE.HHN. ML:1.8 0.00034291329999999997 1.68 AML other m 2021-06-27T22:37:08.88
IV.VCRE.HHE. ML:1.7 0.00028142115 0.3456 AML other m 2021-06-27T22:37:09.22
IV.CRTO.HHE. ML:2.1 0.0008355078 0.2816 AML other m 2021-06-27T22:37:09.25
IV.CRTO.HHN. ML:1.9 0.00049578405 0.2048 AML other m 2021-06-27T22:37:09.28
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