Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 29-07-2020 and time 12:51:26 (UTC) in region 4 km SW Lioni (AV)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Lioni (AV), on

  • 29-07-2020 12:51:26 (UTC)
  • 29-07-2020 14:51:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8600, 15.1470 at 16 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 4 6201 6201
Nusco AV 6 4203 10404
Bagnoli Irpino AV 7 3217 13621
Sant'Angelo dei Lombardi AV 8 4250 17871
Caposele AV 8 3483 21354
Teora AV 9 1537 22891
Torella dei Lombardi AV 10 2144 25035
Cassano Irpino AV 10 982 26017
Calabritto AV 10 2391 28408
Rocca San Felice AV 10 851 29259
Morra De Sanctis AV 11 1297 30556
Montella AV 11 7780 38336
Guardia Lombardi AV 12 1718 40054
Castelfranci AV 12 2041 42095
Villamaina AV 13 995 43090
Senerchia AV 14 842 43932
Montemarano AV 14 2851 46783
Acerno SA 15 2783 49566
Castelnuovo di Conza SA 15 619 50185
Castelvetere sul Calore AV 16 1615 51800
Laviano SA 16 1438 53238
Santomenna SA 16 443 53681
Paternopoli AV 16 2384 56065
Conza della Campania AV 16 1373 57438
Andretta AV 17 1927 59365
Valva SA 17 1643 61008
Frigento AV 18 3780 64788
Gesualdo AV 18 3516 68304
San Mango sul Calore AV 18 1185 69489
Sturno AV 18 3080 72569
Sant'Andrea di Conza AV 19 1539 74108
Colliano SA 19 3638 77746
Cairano AV 19 326 78072
Luogosano AV 19 1187 79259
Volturara Irpina AV 19 3289 82548
Carife AV 20 1408 83956

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Avellino (54857 inhabitants)
31 Km NE of Battipaglia (50786 inhabitants)
38 Km NE of Salerno (135261 inhabitants)
41 Km E of Cava de' Tirreni (53659 inhabitants)
43 Km SE of Benevento (60091 inhabitants)
54 Km E of Scafati (50787 inhabitants)
59 Km E of Castellammare di Stabia (66466 inhabitants)
61 Km W of Potenza (67122 inhabitants)
66 Km E of Acerra (59573 inhabitants)
66 Km E of Torre del Greco (86275 inhabitants)
67 Km E of Portici (55274 inhabitants)
68 Km E of Ercolano (53709 inhabitants)
71 Km E of Afragola (65057 inhabitants)
72 Km E of Casoria (77642 inhabitants)
72 Km E of Caserta (76326 inhabitants)
75 Km SW of Foggia (151991 inhabitants)
75 Km E of Napoli (974074 inhabitants)
78 Km SW of Cerignola (58396 inhabitants)
80 Km E of Giugliano in Campania (122974 inhabitants)
80 Km E of Aversa (53047 inhabitants)
81 Km E of Marano di Napoli (59874 inhabitants)
89 Km E of Pozzuoli (81661 inhabitants)
94 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 1.1 2020-07-29
12:51:26		 40.8597 15.1467 16 2020-11-19
12:37:06		 Bollettino Sismico Italiano INGV 84191801
Reviewed
Rev100 		ML 1.1 2020-07-29
12:51:26		 40.858 15.1478 16 2020-07-29
12:57:24		 Sala Sismica INGV-Roma 81453051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-29 12:51:26 ± 0.21
Latitude 40.8597 ± 0.0063
Longitude 15.1467 ± 0.0131
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84191801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 993
Semi-minor axis of confidence ellipse (meter) 543
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18166
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84191801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-28 00:34:12

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 81453051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-29 12:57:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.FUSIO.HHZ. 2020-07-29T12:52:14.23 3.0 undecidable manual Sn -7.87 0
IV.PANTE.HHZ. 2020-07-29T12:51:58.16 3.0 positive manual Pg 11.63 0
IV.MAGA.HHZ. 2020-07-29T12:51:56.56 3.0 undecidable manual Sg 7.18 0
CH.BNALP.HHZ. 2020-07-29T12:51:53.66 3.0 positive manual Pg 19.75 0
IV.EPZF.HHZ. 2020-07-29T12:51:50.47 3.0 negative manual Pg 15.38 0
XK.ALB1.HHZ. 2020-07-29T12:51:49.35 3.0 undecidable manual Pg 21.08 0
IV.AGLI.HHZ. 2020-07-29T12:51:48.20 3.0 undecidable manual Sg 0.85 0
IV.CAFE.HHZ. 2020-07-29T12:51:34.48 0.6 undecidable manual S 22 20.1687 116 0.17 49
IX.MNT3.HHZ.02 2020-07-29T12:51:32.40 0.6 undecidable manual S 258 11.9769 134 -0.12 50
IV.SNAL.HHZ. 2020-07-29T12:51:32.14 0.6 undecidable manual S 36 8.9799 144 0.15 50
IV.MCRV.HHZ. 2020-07-29T12:51:31.91 0.3 undecidable manual S 168 8.7801 145 -0.04 76
IV.CAFE.HHZ. 2020-07-29T12:51:30.81 0.1 undecidable manual P 22 20.1687 116 -0.06 99
IV.MCRV.HHZ. 2020-07-29T12:51:29.63 0.1 undecidable manual P 168 8.7801 145 0.12 100
IX.MNT3.HHZ.02 2020-07-29T12:51:29.92 0.1 undecidable manual P 258 11.9769 134 0.09 100
IV.SNAL.HHZ. 2020-07-29T12:51:29.31 0.1 undecidable manual P 36 8.9799 144 -0.22 98
IV.QLNO.HHZ. 2020-07-29T12:51:23.67 3.0 positive manual Pg 10.15 0
IV.CRTC.HHZ. 2020-07-29T12:51:04.30 3.0 undecidable manual Sg 10.21 0
IV.SFI.EHZ. 2020-07-29T12:51:03.03 3.0 undecidable manual Sg 1.02 0
IV.MAGO.CHZ. 2020-07-29T12:50:51.72 3.0 positive manual Pg 3.69 0
IV.COR1.EHZ. 2020-07-29T12:50:50.06 3.0 undecidable manual Sn -1.6 0
IV.CSNT.HHZ. 2020-07-29T12:50:44.16 3.0 positive manual Pg 0.64 0
IV.RINC.HHZ. 2020-07-29T12:50:42.42 3.0 positive manual P -1.93 0
IV.ARVD.HHZ. 2020-07-29T12:50:38.15 3.0 undecidable manual P 2.07 0
IV.PARC.HHZ. 2020-07-29T12:50:38.33 3.0 positive manual P -0.6 0
TV.SF01.EHZ. 2020-07-29T12:50:36.47 3.0 undecidable manual P -3 0
IV.CESX.HHZ. 2020-07-29T12:50:35.02 3.0 undecidable manual P 1.24 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCRV.HHE. ML:1.0 0.00009175 0.96 AML other m 2020-07-29T12:51:32.14
IX.MNT3.HHE.02 ML:1.1 0.000117 0.14 AML other m 2020-07-29T12:51:32.57
IX.MNT3.HHN.02 ML:1.5 0.0002455 0.08 AML other m 2020-07-29T12:51:32.58
IV.SNAL.HHE. ML:1.0 0.00009800000000000001 1.16 AML other m 2020-07-29T12:51:32.69
IV.SNAL.HHN. ML:1.0 0.0000932 0.6 AML other m 2020-07-29T12:51:33.36
IV.MCRV.HHN. ML:1.0 0.0000839 0.56 AML other m 2020-07-29T12:51:33.44
IV.CAFE.HHN. ML:0.9 0.0000558 1.64 AML other m 2020-07-29T12:51:35.08
IV.CAFE.HHE. ML:1.1 0.00007865 0.96 AML other m 2020-07-29T12:51:35.66
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