Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 01-07-2021 and time 21:03:23 (Italy) in region 2 km E Piaggine (SA)

A magnitude ML 1.7 earthquake occured in region: 2 km E Piaggine (SA), on

  • 01-07-2021 19:03:23 (UTC)
  • 01-07-2021 21:03:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.3430, 15.4030 at 17 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
Piaggine SA 2 1311 1311
Valle dell'Angelo SA 3 248 1559
Sacco SA 5 492 2051
Laurino SA 6 1548 3599
Roscigno SA 8 817 4416
Campora SA 10 439 4855
Corleto Monforte SA 11 592 5447
San Rufo SA 11 1754 7201
Bellosguardo SA 12 794 7995
Monte San Giacomo SA 12 1572 9567
Teggiano SA 12 7976 17543
Stio SA 13 872 18415
Felitto SA 13 1283 19698
Sant'Angelo a Fasanella SA 14 635 20333
Sassano SA 14 5013 25346
Magliano Vetere SA 14 695 26041
Cannalonga SA 14 1063 27104
San Pietro al Tanagro SA 14 1695 28799
Rofrano SA 15 1576 30375
Ottati SA 15 618 30993
Moio della Civitella SA 16 1827 32820
Sant'Arsenio SA 16 2815 35635
Novi Velia SA 16 2324 37959
Gioi SA 17 1278 39237
Sanza SA 17 2608 41845
Aquara SA 17 1545 43390
Castel San Lorenzo SA 17 2471 45861
Vallo della Lucania SA 17 8531 54392
Sala Consilina SA 17 12664 67056
Monteforte Cilento SA 18 564 67620
Atena Lucana SA 18 2336 69956
Alfano SA 18 1023 70979
Laurito SA 19 788 71767
Roccadaspide SA 20 7209 78976

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SE of Battipaglia (50786 inhabitants)
48 Km SW of Potenza (67122 inhabitants)
66 Km SE of Salerno (135261 inhabitants)
71 Km SE of Cava de' Tirreni (53659 inhabitants)
82 Km SE of Avellino (54857 inhabitants)
87 Km SE of Scafati (50787 inhabitants)
87 Km E of Castellammare di Stabia (66466 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 2021-07-01
19:03:23		 40.3432 15.4028 17 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 97778631
Reviewed
Rev100 		ML 1.7 2021-07-01
19:03:22		 40.342 15.3955 17 2021-07-01
19:21:50		 Sala Sismica INGV-Roma 92115981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-01 19:03:23 ± 0.1
Latitude 40.3432 ± 0.0045
Longitude 15.4028 ± 0.0071
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97778631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 577
Semi-minor axis of confidence ellipse (meter) 424
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47394
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 92115981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-01 19:21:50

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 97778631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-25 11:53:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHZ. 2021-07-01T19:05:18.19 3.0 undecidable manual Pg 17.42 0
IV.GAVE.EHZ. 2021-07-01T19:04:58.65 3.0 undecidable manual Sg 10.57 0
IV.ZEN8.EHZ. 2021-07-01T19:04:55.50 3.0 undecidable manual Pn -0.59 0
IV.SRES.HHZ. 2021-07-01T19:04:46.82 3.0 undecidable manual Sg 1.53 0
IV.AGLI.HHZ. 2021-07-01T19:04:44.33 3.0 undecidable manual Pg 8.42 0
AC.VLO.HHZ. 2021-07-01T19:04:43.29 3.0 undecidable manual Sn -6.2 0
IV.MNTT.EHZ. 2021-07-01T19:04:40.61 3.0 undecidable manual Sn -7.85 0
IV.ECTS.HHZ. 2021-07-01T19:04:36.82 3.0 undecidable manual Sg 1.82 0
IV.BRSN.HNZ. 2021-07-01T19:04:34.04 3.0 undecidable manual Pn 0.73 0
IV.TST02.HHZ. 2021-07-01T19:04:16.15 3.0 undecidable manual Sn -2.17 0
CR.STON.BHZ. 2021-07-01T19:04:06.46 3.0 negative manual Pn -4.38 0
IV.VCEL.EHZ. 2021-07-01T19:03:59.21 3.0 negative manual Pn -2.76 0
IV.GIZZ.HHZ. 2021-07-01T19:03:51.67 3.0 negative manual Pg 1.74 0
IV.SPS2.HHZ. 2021-07-01T19:03:42.26 3.0 positive manual Pn -4.51 0
IX.PST3.HNZ.01 2021-07-01T19:03:33.61 0.6 undecidable manual S 331 27.6501 111 0.45 46
IV.MCRV.HHZ. 2021-07-01T19:03:32.20 0.3 undecidable manual P 338 52.6029 99 -0.4 65
IV.SGO.HHZ. 2021-07-01T19:03:32.50 0.3 undecidable manual S 342 25.4523 113 -0.11 73
IV.MGR.HHZ. 2021-07-01T19:03:32.30 0.3 undecidable manual S 151 26.1516 112 -0.48 68
MN.CUC.HNN. 2021-07-01T19:03:32.72 0.6 undecidable manual P 138 52.2033 99 0.17 46
IV.SLCN.HHZ. 2021-07-01T19:03:32.00 0.6 undecidable manual S 75 20.0688 121 0.66 43
IX.CMP3.HNN.02 2021-07-01T19:03:31.41 0.6 undecidable manual P 322 43.7229 101 0.14 47
IV.SIRI.HHZ. 2021-07-01T19:03:31.11 0.3 undecidable manual P 114 43.2234 101 -0.07 72
IX.PGN3.HHE.02 2021-07-01T19:03:31.00 0.3 undecidable manual P 52 41.8248 102 0.03 73
IV.MRLC.HHN. 2021-07-01T19:03:31.60 0.6 undecidable manual P 9 46.4202 100 -0.06 47
IX.SRN3.HHE.02 2021-07-01T19:03:30.40 0.3 undecidable manual S 16 16.5723 127 -0.15 74
IV.CDRU.HHE. 2021-07-01T19:03:30.60 0.3 undecidable manual S 333 18.2706 124 -0.32 71
IX.COL3.HNE.02 2021-07-01T19:03:30.29 0.6 undecidable manual P 351 38.628 103 -0.2 47
IV.CMPR.HHZ. 2021-07-01T19:03:29.30 0.3 undecidable manual S 252 8.88 148 0.13 75
IX.STN3.HNZ.01 2021-07-01T19:03:29.07 0.3 undecidable manual P 45 29.4483 109 -0.07 73
IV.MCEL.HHN. 2021-07-01T19:03:29.88 0.6 undecidable manual P 93 33.8439 106 0.11 48
IX.TEGI.HNZ.01 2021-07-01T19:03:29.40 0.3 undecidable manual S 70 11.9769 138 -0.26 73
IV.MTSN.HNZ. 2021-07-01T19:03:29.82 0.6 undecidable manual P 106 30.6471 108 0.51 45
IX.PST3.HNZ.01 2021-07-01T19:03:29.27 0.3 undecidable manual P 331 27.6501 111 0.4 69
IX.CGG3.HNZ.01 2021-07-01T19:03:28.56 0.3 undecidable manual P 25 24.2535 115 0.18 73
IV.SLCN.HHZ. 2021-07-01T19:03:28.05 0.3 undecidable manual P 75 20.0688 121 0.23 73
IV.CAGG.EHZ. 2021-07-01T19:03:28.56 0.6 undecidable manual P 21 25.4523 113 0.01 50
IV.MGR.HHZ. 2021-07-01T19:03:28.36 0.3 undecidable manual P 151 26.1516 112 -0.29 71
IV.SGO.HHZ. 2021-07-01T19:03:28.60 0.3 undecidable manual P 342 25.4523 113 0.05 75
IX.SRN3.HHE.02 2021-07-01T19:03:27.36 0.3 undecidable manual P 16 16.5723 127 0 76
IV.CDRU.HHE. 2021-07-01T19:03:27.46 0.1 undecidable manual P 333 18.2706 124 -0.12 99
IX.TEGI.HNZ.01 2021-07-01T19:03:26.85 0.3 undecidable manual P 70 11.9769 138 0 77
IV.CMPR.HHZ. 2021-07-01T19:03:26.70 0.1 undecidable manual P 252 8.88 148 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CMPR.HNE. ML:2.1 0.0011444776999999999 0.2432 AML other m 2021-07-01T19:03:29.48
IV.CMPR.HHE. ML:1.7 0.00041500000000000006 0.2 AML other m 2021-07-01T19:03:29.59
IV.CMPR.HHN. ML:1.9 0.0007083456 0.0768 AML other m 2021-07-01T19:03:29.56
IV.CMPR.HNN. ML:1.9 0.0006627581 0.0896 AML other m 2021-07-01T19:03:29.57
IV.MGR.HNN. ML:1.7 0.0002508387 0.2688 AML other m 2021-07-01T19:03:32.64
IV.MGR.HHN. ML:1.7 0.0002472174 0.2432 AML other m 2021-07-01T19:03:32.65
IV.MGR.HNE. ML:1.5 0.00015732879999999998 0.2304 AML other m 2021-07-01T19:03:32.76
IV.MGR.HHE. ML:1.4 0.00012975385 0.2432 AML other m 2021-07-01T19:03:33.22
IV.SLCN.HNE. ML:1.6 0.00026223985 0.256 AML other m 2021-07-01T19:03:33.69
IV.SLCN.HHE. ML:1.7 0.00029176395 0.3456 AML other m 2021-07-01T19:03:35.42
IV.SLCN.HHN. ML:1.7 0.00027257284999999997 0.4736 AML other m 2021-07-01T19:03:35.49
IV.SLCN.HNN. ML:1.7 0.00027303730000000006 0.4096 AML other m 2021-07-01T19:03:36.69
IV.SIRI.HHN. ML:1.2 0.000044082445 0.2048 AML other m 2021-07-01T19:03:40.61
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