Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 03-09-2020 and time 01:49:43 (Italy) in region 6 km W Calabritto (AV)

A magnitude ML 1.3 earthquake occured in region: 6 km W Calabritto (AV), on

  • 02-09-2020 23:49:43 (UTC)
  • 03-09-2020 01:49:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8010, 15.1520 at 6 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
Calabritto AV 6 2391 2391
Caposele AV 7 3483 5874
Bagnoli Irpino AV 8 3217 9091
Senerchia AV 8 842 9933
Lioni AV 9 6201 16134
Teora AV 10 1537 17671
Acerno SA 10 2783 20454
Nusco AV 11 4203 24657
Valva SA 12 1643 26300
Montella AV 12 7780 34080
Laviano SA 13 1438 35518
Cassano Irpino AV 13 982 36500
Oliveto Citra SA 14 3802 40302
Santomenna SA 14 443 40745
Sant'Angelo dei Lombardi AV 14 4250 44995
Castelnuovo di Conza SA 14 619 45614
Colliano SA 15 3638 49252
Campagna SA 15 16703 65955
Morra De Sanctis AV 16 1297 67252
Torella dei Lombardi AV 16 2144 69396
Conza della Campania AV 17 1373 70769
Rocca San Felice AV 17 851 71620
Castelfranci AV 17 2041 73661
Guardia Lombardi AV 18 1718 75379
Contursi Terme SA 18 3394 78773
Montemarano AV 19 2851 81624
Montecorvino Rovella SA 19 12739 94363
Sant'Andrea di Conza AV 19 1539 95902
Olevano sul Tusciano SA 19 6878 102780
Palomonte SA 20 3985 106765
Villamaina AV 20 995 107760
Giffoni Valle Piana SA 20 12001 119761

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Battipaglia (50786 inhabitants)
33 Km E of Avellino (54857 inhabitants)
36 Km E of Salerno (135261 inhabitants)
39 Km E of Cava de' Tirreni (53659 inhabitants)
48 Km SE of Benevento (60091 inhabitants)
53 Km E of Scafati (50787 inhabitants)
58 Km E of Castellammare di Stabia (66466 inhabitants)
58 Km W of Potenza (67122 inhabitants)
66 Km E of Torre del Greco (86275 inhabitants)
67 Km E of Portici (55274 inhabitants)
68 Km E of Acerra (59573 inhabitants)
68 Km E of Ercolano (53709 inhabitants)
72 Km E of Afragola (65057 inhabitants)
73 Km E of Casoria (77642 inhabitants)
75 Km E of Caserta (76326 inhabitants)
76 Km E of Napoli (974074 inhabitants)
81 Km SW of Foggia (151991 inhabitants)
81 Km E of Giugliano in Campania (122974 inhabitants)
82 Km E of Marano di Napoli (59874 inhabitants)
82 Km SW of Cerignola (58396 inhabitants)
82 Km E of Aversa (53047 inhabitants)
89 Km E of Pozzuoli (81661 inhabitants)
100 Km S of San Severo (53905 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 1.3 2020-09-02
23:49:43		 40.8013 15.1523 6 2021-02-26
14:55:54		 Bollettino Sismico Italiano INGV 82730371
Reviewed
Rev100 		ML 1.3 2020-09-02
23:49:43		 40.7988 15.1415 10 2020-09-02
23:57:09		 Sala Sismica INGV-Roma 82574381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-02 23:49:43 ± 0.17
Latitude 40.8013 ± 0.0045
Longitude 15.1523 ± 0.0119
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82730371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 744
Semi-minor axis of confidence ellipse (meter) 699
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.39120
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 82574381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-02 23:57:09

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 82730371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-30 12:24:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGO.HHE. 2020-09-02T23:49:54.50 0.6 undecidable manual S 154 29.748 102 0.05 48
IV.CAFE.HHZ. 2020-09-02T23:49:53.70 0.6 undecidable manual S 16 26.1516 104 0.49 44
IV.MRLC.HHZ. 2020-09-02T23:49:53.61 0.3 undecidable manual S 100 28.749 102 -0.49 66
IX.SRN3.HNE.02 2020-09-02T23:49:52.24 0.6 undecidable manual P 144 43.4232 50 -0.38 44
IX.RDM3.HHZ.02 2020-09-02T23:49:51.22 0.1 undecidable manual P 76 33.2445 101 0.54 86
IV.MRB1.HHZ. 2020-09-02T23:49:51.66 0.3 undecidable manual P 337 38.8278 99 -0.12 70
IX.RSF3.HNE.02 2020-09-02T23:49:50.04 0.6 undecidable manual S 6 18.1707 109 -0.53 44
IX.SALI.HNE.01 2020-09-02T23:49:50.35 0.6 undecidable manual S 9 14.4744 113 0.99 37
IX.PST3.HHZ.02 2020-09-02T23:49:49.92 0.3 undecidable manual P 164 27.75 103 0.32 69
IV.SGO.HHE. 2020-09-02T23:49:49.72 0.3 undecidable manual P 154 29.748 102 -0.27 69
IV.MRLC.HHZ. 2020-09-02T23:49:49.14 0.3 undecidable manual P 100 28.749 102 -0.64 62
IV.SNAL.HHZ. 2020-09-02T23:49:49.93 0.6 undecidable manual S 19 14.5743 113 0.53 45
IX.LIO3.HHN.02 2020-09-02T23:49:48.83 0.6 undecidable manual S 13 10.878 120 0.58 44
IX.AND3.HHE.02 2020-09-02T23:49:48.93 0.6 undecidable manual P 47 20.7681 107 0.68 42
IV.CAFE.HHZ. 2020-09-02T23:49:48.98 0.1 undecidable manual P 16 26.1516 104 -0.3 92
IX.CLT3.HHE.02 2020-09-02T23:49:48.73 0.3 undecidable manual P 62 23.9538 105 -0.13 72
IX.CMP3.HNZ.02 2020-09-02T23:49:48.40 0.3 undecidable manual P 200 17.6712 110 0.75 61
IV.SNAL.HHZ. 2020-09-02T23:49:47.06 0.1 undecidable manual P 19 14.5743 113 -0.01 100
IX.RSF3.HNE.02 2020-09-02T23:49:47.28 0.3 undecidable manual P 6 18.1707 109 -0.47 68
IX.SNR3.HHZ.02 2020-09-02T23:49:47.96 0.3 undecidable manual S 155 8.0808 128 0.52 68
IX.SALI.HNE.01 2020-09-02T23:49:47.30 0.3 undecidable manual P 9 14.4744 113 0.24 72
IX.COL3.HNE.02 2020-09-02T23:49:47.93 0.3 undecidable manual P 130 19.5693 108 -0.09 73
IX.SNR3.HHZ.02 2020-09-02T23:49:46.15 0.1 undecidable manual P 155 8.0808 128 0.21 97
IX.NSC3.HNN.02 2020-09-02T23:49:46.35 0.6 undecidable manual S 333 5.5944 138 -0.47 46
IX.LIO3.HHN.02 2020-09-02T23:49:46.29 0.1 undecidable manual P 13 10.878 120 -0.12 98
IX.NSC3.HNN.02 2020-09-02T23:49:45.28 0.1 undecidable manual P 333 5.5944 138 -0.31 96
IV.MCRV.HHZ. 2020-09-02T23:49:45.90 0.3 undecidable manual S 147 2.4975 158 -0.34 71
IV.MCRV.HHZ. 2020-09-02T23:49:44.97 0.1 undecidable manual P 147 2.4975 158 -0.28 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAFE.HHN. ML:1.1 0.00007195212500000001 1.3344 AML other m 2020-09-02T23:49:54.97
IV.SNAL.HNE. ML:1.8 0.00077699295 0.9216 AML other m 2020-09-02T23:49:56.13
IV.SNAL.HHE. ML:1.8 0.00072090595 0.896 AML other m 2020-09-02T23:49:56.15
IV.SNAL.HHN. ML:1.7 0.0006145982999999999 0.64 AML other m 2020-09-02T23:49:56.90
IV.SNAL.HNN. ML:1.7 0.0006241832 0.576 AML other m 2020-09-02T23:49:56.92
IV.CAFE.HNE. ML:1.4 0.000134117075 1.5264 AML other m 2020-09-02T23:49:57.93
IV.MRLC.HNN. ML:0.8 0.00002943967 0.4352 AML other m 2020-09-02T23:49:59.28
IV.CAFE.HHE. ML:1.2 0.00009369441 0.64 AML other m 2020-09-02T23:50:00.38
IV.MRLC.HHN. ML:0.9 0.000040792850000000004 0.7936 AML other m 2020-09-02T23:50:01.47
IV.CAFE.HNN. ML:1.3 0.00012787189999999998 1.0624 AML other m 2020-09-02T23:50:02.62
IV.MRLC.HNE. ML:0.8 0.00002795323 1.3088 AML other m 2020-09-02T23:50:02.99
IV.MRLC.HHE. ML:1.1 0.00006135137 0.8832 AML other m 2020-09-02T23:50:02.00
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