Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-03-2021 and time 08:52:45 (UTC) in region 4 km S Lioni (AV)

A magnitude ML 1.2 earthquake occured in region: 4 km S Lioni (AV), on

  • 08-03-2021 08:52:45 (UTC)
  • 08-03-2021 09:52:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.8460, 15.1850 at 12 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
Lioni AV 4 6201 6201
Caposele AV 5 3483 9684
Teora AV 6 1537 11221
Calabritto AV 7 2391 13612
Sant'Angelo dei Lombardi AV 9 4250 17862
Nusco AV 10 4203 22065
Bagnoli Irpino AV 10 3217 25282
Morra De Sanctis AV 10 1297 26579
Senerchia AV 12 842 27421
Rocca San Felice AV 12 851 28272
Castelnuovo di Conza SA 12 619 28891
Laviano SA 12 1438 30329
Santomenna SA 12 443 30772
Torella dei Lombardi AV 12 2144 32916
Guardia Lombardi AV 12 1718 34634
Conza della Campania AV 13 1373 36007
Cassano Irpino AV 14 982 36989
Valva SA 14 1643 38632
Montella AV 14 7780 46412
Andretta AV 15 1927 48339
Castelfranci AV 15 2041 50380
Acerno SA 16 2783 53163
Sant'Andrea di Conza AV 16 1539 54702
Colliano SA 16 3638 58340
Villamaina AV 16 995 59335
Cairano AV 17 326 59661
Oliveto Citra SA 18 3802 63463
Montemarano AV 18 2851 66314
Pescopagano PZ 18 1910 68224
Castelvetere sul Calore AV 19 1615 69839
Paternopoli AV 19 2384 72223
Frigento AV 20 3780 76003

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Battipaglia (50786 inhabitants)
34 Km E of Avellino (54857 inhabitants)
40 Km E of Salerno (135261 inhabitants)
43 Km E of Cava de' Tirreni (53659 inhabitants)
46 Km SE of Benevento (60091 inhabitants)
56 Km E of Scafati (50787 inhabitants)
57 Km W of Potenza (67122 inhabitants)
62 Km E of Castellammare di Stabia (66466 inhabitants)
69 Km E of Torre del Greco (86275 inhabitants)
69 Km E of Acerra (59573 inhabitants)
70 Km E of Portici (55274 inhabitants)
71 Km E of Ercolano (53709 inhabitants)
74 Km E of Afragola (65057 inhabitants)
75 Km SW of Foggia (151991 inhabitants)
75 Km E of Casoria (77642 inhabitants)
76 Km E of Caserta (76326 inhabitants)
76 Km SW of Cerignola (58396 inhabitants)
79 Km E of Napoli (974074 inhabitants)
83 Km E of Giugliano in Campania (122974 inhabitants)
83 Km E of Aversa (53047 inhabitants)
84 Km E of Marano di Napoli (59874 inhabitants)
92 Km E of Pozzuoli (81661 inhabitants)
95 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 1.2 2021-03-08
08:52:45		 40.8458 15.1847 12 2021-07-12
16:55:05		 Bollettino Sismico Italiano INGV 89039241
Reviewed
Rev100 		ML 1.2 2021-03-08
08:52:46		 40.8432 15.1917 12 2021-03-08
08:59:07		 Sala Sismica INGV-Roma 87898171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-08 08:52:45 ± 0.08
Latitude 40.8458 ± 0.0036
Longitude 15.1847 ± 0.0071
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89039241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.36782
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 87898171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-08 08:59:07

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 89039241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-12 16:26:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDRU.HHZ. 2021-03-08T08:52:59.27 0.6 undecidable manual S 166 40.8258 91 -0.04 47
IV.CAFE.HHZ. 2021-03-08T08:52:54.14 0.3 undecidable manual S 12 20.6682 95 0.19 71
IV.CDRU.HHZ. 2021-03-08T08:52:53.75 0.6 undecidable manual P 166 40.8258 91 0.08 47
IX.COL3.HHZ. 2021-03-08T08:52:53.91 0.3 undecidable manual S 145 21.4674 95 -0.24 70
IX.SNR3.HHZ.02 2021-03-08T08:52:52.62 0.6 undecidable manual S 177 12.2766 115 0.86 39
IX.AND3.HNN. 2021-03-08T08:52:52.81 0.6 undecidable manual S 53 15.5733 103 0.22 47
IX.MNT3.HHZ. 2021-03-08T08:52:52.43 0.3 undecidable manual S 266 14.9739 105 -0.02 74
IX.BSC3.HNZ.01 2021-03-08T08:52:51.72 0.3 undecidable manual P 42 24.9528 93 0.49 66
IV.SNAL.HHZ. 2021-03-08T08:52:51.27 0.3 undecidable manual S 13 9.0798 129 0.22 72
IX.SALI.HNE. 2021-03-08T08:52:51.45 0.6 undecidable manual S 358 9.3795 128 0.34 46
IX.RSF3.HNE.02 2021-03-08T08:52:51.42 0.6 undecidable manual S 357 13.1757 111 -0.57 44
IX.COL3.HHZ. 2021-03-08T08:52:50.36 0.3 undecidable manual P 145 21.4674 95 -0.33 68
IV.CAFE.HHZ. 2021-03-08T08:52:50.55 0.1 positive manual P 12 20.6682 95 -0.02 98
IV.MCRV.HHZ. 2021-03-08T08:52:50.72 0.3 undecidable manual S 191 7.1928 139 0.04 75
IX.NSC3.HHZ. 2021-03-08T08:52:50.24 0.6 undecidable manual S 271 5.2947 149 -0.14 49
IX.MNT3.HHZ. 2021-03-08T08:52:49.72 0.3 undecidable manual P 266 14.9739 105 0.01 74
IX.SNR3.HHZ.02 2021-03-08T08:52:49.43 0.1 undecidable manual P 177 12.2766 115 0.12 98
IX.AND3.HNN. 2021-03-08T08:52:49.63 0.1 undecidable manual P 53 15.5733 103 -0.16 96
IX.RSF3.HNE.02 2021-03-08T08:52:48.99 0.1 undecidable manual P 357 13.1757 111 -0.45 90
IV.MCRV.HHZ. 2021-03-08T08:52:48.67 0.1 negative manual P 191 7.1928 139 -0.02 100
IX.NSC3.HHZ. 2021-03-08T08:52:48.48 0.1 undecidable manual P 271 5.2947 149 -0.03 100
IV.SNAL.HHZ. 2021-03-08T08:52:48.84 0.3 undecidable manual P 13 9.0798 129 -0.06 74
IX.SALI.HNE. 2021-03-08T08:52:48.92 0.1 undecidable manual P 358 9.3795 128 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAFE.HNN. ML:1.4 0.0001653007 1.1616 AML other m 2021-03-08T08:52:50.12
IV.MCRV.HHE. ML:1.2 0.0002235 1.24 AML other m 2021-03-08T08:52:51.77
IV.MCRV.HHN. ML:1.4 0.0003484391 0.1216 AML other m 2021-03-08T08:52:51.27
IX.MNT3.HHN.02 ML:1.4 0.0002175 0.6 AML other m 2021-03-08T08:52:52.41
IV.SNAL.HNE. ML:1.3 0.0002295 1.4 AML other m 2021-03-08T08:52:52.14
IV.SNAL.HHE. ML:1.3 0.000231 1.4 AML other m 2021-03-08T08:52:52.14
IV.SNAL.HHN. ML:1.1 0.00015198424999999998 0.2176 AML other m 2021-03-08T08:52:53.34
IV.SNAL.HNN. ML:1.1 0.00015238164999999997 0.2176 AML other m 2021-03-08T08:52:53.34
IX.MNT3.HNN.01 ML:1.3 0.00017697760000000002 0.1088 AML other m 2021-03-08T08:52:53.46
IX.MNT3.HHE.02 ML:1.1 0.000117 0.7 AML other m 2021-03-08T08:52:53.94
IV.CAFE.HHN. ML:1.3 0.00014050000000000003 0.34 AML other m 2021-03-08T08:52:54.59
IV.CAFE.HNE. ML:1.3 0.00012730131 0.2304 AML other m 2021-03-08T08:52:54.59
IV.CAFE.HHE. ML:1.2 0.000121 0.24 AML other m 2021-03-08T08:52:54.59
IX.MNT3.HNE.01 ML:1.5 0.00029061811 1.0208 AML other m 2021-03-08T08:53:02.24
IV.CDRU.HHN. ML:0.8 0.00001765 1.28 AML other m 2021-03-08T08:53:02.93
IV.CDRU.HHE. ML:0.8 0.00002225 0.14 AML other m 2021-03-08T08:53:04.56
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