Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 07-09-2021 and time 04:20:10 (Italy) in region 3 km SE Lioni (AV)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Lioni (AV), on

  • 07-09-2021 02:20:10 (UTC)
  • 07-09-2021 04:20:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8570, 15.2060 at 14 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Lioni AV 3 6201 6201
Teora AV 4 1537 7738
Caposele AV 5 3483 11221
Calabritto AV 8 2391 13612
Morra De Sanctis AV 8 1297 14909
Sant'Angelo dei Lombardi AV 8 4250 19159
Castelnuovo di Conza SA 11 619 19778
Nusco AV 11 4203 23981
Conza della Campania AV 11 1373 25354
Guardia Lombardi AV 11 1718 27072
Santomenna SA 11 443 27515
Rocca San Felice AV 11 851 28366
Laviano SA 12 1438 29804
Bagnoli Irpino AV 12 3217 33021
Torella dei Lombardi AV 12 2144 35165
Senerchia AV 13 842 36007
Andretta AV 13 1927 37934
Valva SA 14 1643 39577
Sant'Andrea di Conza AV 14 1539 41116
Cairano AV 15 326 41442
Cassano Irpino AV 15 982 42424
Montella AV 16 7780 50204
Castelfranci AV 16 2041 52245
Villamaina AV 16 995 53240
Pescopagano PZ 16 1910 55150
Colliano SA 16 3638 58788
Acerno SA 18 2783 61571
Oliveto Citra SA 18 3802 65373
Montemarano AV 19 2851 68224
Carife AV 19 1408 69632
Paternopoli AV 19 2384 72016
Frigento AV 20 3780 75796
Sturno AV 20 3080 78876

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Battipaglia (50786 inhabitants)
35 Km E of Avellino (54857 inhabitants)
42 Km E of Salerno (135261 inhabitants)
45 Km E of Cava de' Tirreni (53659 inhabitants)
47 Km SE of Benevento (60091 inhabitants)
56 Km W of Potenza (67122 inhabitants)
58 Km E of Scafati (50787 inhabitants)
64 Km E of Castellammare di Stabia (66466 inhabitants)
71 Km E of Acerra (59573 inhabitants)
71 Km E of Torre del Greco (86275 inhabitants)
72 Km E of Portici (55274 inhabitants)
73 Km E of Ercolano (53709 inhabitants)
73 Km SW of Foggia (151991 inhabitants)
74 Km SW of Cerignola (58396 inhabitants)
76 Km E of Afragola (65057 inhabitants)
77 Km E of Casoria (77642 inhabitants)
77 Km E of Caserta (76326 inhabitants)
80 Km E of Napoli (974074 inhabitants)
85 Km E of Giugliano in Campania (122974 inhabitants)
85 Km E of Aversa (53047 inhabitants)
85 Km E of Marano di Napoli (59874 inhabitants)
94 Km S of San Severo (53905 inhabitants)
94 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
Reviewed
Rev100 		ML 0.9 2021-09-07
02:20:10		 40.8568 15.2058 14 2021-09-07
02:28:04		 Sala Sismica INGV-Roma 95130311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 02:20:10 ± 0.18
Latitude 40.8568 ± 0.0045
Longitude 15.2058 ± 0.0095
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95130311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 784
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 20
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) 0.19425
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 95130311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 02:28:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-09-07T02:20:39.14 3.0 undecidable manual S -0.02 0
IX.COL3.HHE.02 2021-09-07T02:20:19.21 0.1 undecidable manual S 151 21.5673 109 -0.08 97
IV.CELI.HHZ. 2021-09-07T02:20:18.17 3.0 undecidable manual P 1.57 0
IX.MNT3.EHZ.02 2021-09-07T02:20:18.37 0.3 undecidable manual S 263 16.872 117 0.23 72
IX.SNR3.EHZ.02 2021-09-07T02:20:17.84 0.3 undecidable manual S 185 13.4754 125 0.47 70
IV.SNAL.HHZ. 2021-09-07T02:20:16.25 0.3 undecidable manual S 2 7.5813 145 -0.01 77
IX.SALI.HNZ.01 2021-09-07T02:20:16.93 0.1 undecidable manual S 345 8.3805 142 0.54 90
IX.RSF3.HHE.02 2021-09-07T02:20:16.78 0.1 undecidable manual S 348 12.1767 129 -0.31 96
IV.MCRV.HHZ. 2021-09-07T02:20:16.25 0.3 undecidable manual S 201 8.7801 141 -0.21 73
IV.CAFE.HNE. 2021-09-07T02:20:15.24 0.1 undecidable manual P 8 19.1697 112 -0.18 98
IX.MNT3.EHZ.02 2021-09-07T02:20:15.32 0.6 positive manual P 263 16.872 117 0.22 48
IX.NSC3.EHZ.02 2021-09-07T02:20:15.94 0.3 undecidable manual S 261 7.0929 147 -0.25 73
IX.CLT3.EHN.02 2021-09-07T02:20:15.83 0.1 undecidable manual P 73 17.3715 116 0.66 85
IX.COL3.HHE.02 2021-09-07T02:20:15.55 0.3 undecidable manual P 151 21.5673 109 -0.21 71
IX.LIO3.HNZ.02 2021-09-07T02:20:15.55 0.3 undecidable manual S 334 4.8951 157 -0.37 71
IX.SNR3.EHZ.02 2021-09-07T02:20:14.98 1.0 negative manual P 185 13.4754 125 0.33 24
IV.SNAL.HHZ. 2021-09-07T02:20:14.04 0.3 negative manual P 2 7.5813 145 0.03 76
IX.SALI.HNZ.01 2021-09-07T02:20:14.24 0.1 undecidable manual P 345 8.3805 142 0.16 99
IX.RSF3.HHE.02 2021-09-07T02:20:14.25 0.1 undecidable manual P 348 12.1767 129 -0.24 97
IV.MCRV.HHZ. 2021-09-07T02:20:13.82 0.3 undecidable manual P 201 8.7801 141 -0.3 72
IX.LIO3.HNZ.02 2021-09-07T02:20:13.67 0.1 undecidable manual P 334 4.8951 157 -0.14 100
IX.NSC3.EHZ.02 2021-09-07T02:20:13.98 0.3 undecidable manual P 261 7.0929 147 0.01 77
IV.CET2.HHZ. 2021-09-07T02:20:12.38 3.0 undecidable manual P 0.01 0
IV.CDRU.HHZ. 2021-09-07T02:20:07.61 3.0 undecidable manual P -0.42 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.NSC3.EHE.02 ML:0.7 0.000057608240000000005 0.144 AML other m 2021-09-07T02:20:16.73
IV.MCRV.HHE. ML:0.6 0.00004453549000000001 0.1008 AML other m 2021-09-07T02:20:16.43
IX.NSC3.EHN.02 ML:1.0 0.0001021 0.12 AML other m 2021-09-07T02:20:16.91
IV.MCRV.HHN. ML:1.1 0.0001403701 0.0992 AML other m 2021-09-07T02:20:16.95
IV.SNAL.HHE. ML:0.7 0.00005700986500000001 0.12 AML other m 2021-09-07T02:20:17.47
IX.MNT3.EHN.02 ML:1.1 0.00008285 0.1 AML other m 2021-09-07T02:20:19.10
IX.MNT3.EHE.02 ML:0.7 0.000033904699999999994 0.08 AML other m 2021-09-07T02:20:18.95
IV.SNAL.HNE. ML:0.8 0.00007169982 0.2208 AML other m 2021-09-07T02:20:17.47
IV.SNAL.HNN. ML:0.9 0.00008744894999999999 0.6192 AML other m 2021-09-07T02:20:17.91
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