Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 01-07-2021 and time 21:04:15 (Italy) in region 1 km E Piaggine (SA)

A magnitude ML 1.7 earthquake occured in region: 1 km E Piaggine (SA), on

  • 01-07-2021 19:04:15 (UTC)
  • 01-07-2021 21:04:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.3440, 15.3930 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 1 1311 1311
Valle dell'Angelo SA 2 248 1559
Sacco SA 5 492 2051
Laurino SA 5 1548 3599
Roscigno SA 8 817 4416
Campora SA 9 439 4855
Corleto Monforte SA 11 592 5447
Bellosguardo SA 11 794 6241
San Rufo SA 12 1754 7995
Stio SA 12 872 8867
Felitto SA 13 1283 10150
Monte San Giacomo SA 13 1572 11722
Teggiano SA 13 7976 19698
Magliano Vetere SA 13 695 20393
Sant'Angelo a Fasanella SA 13 635 21028
Cannalonga SA 14 1063 22091
Sassano SA 15 5013 27104
San Pietro al Tanagro SA 15 1695 28799
Ottati SA 15 618 29417
Rofrano SA 15 1576 30993
Moio della Civitella SA 15 1827 32820
Novi Velia SA 16 2324 35144
Gioi SA 16 1278 36422
Aquara SA 16 1545 37967
Castel San Lorenzo SA 16 2471 40438
Sant'Arsenio SA 16 2815 43253
Vallo della Lucania SA 17 8531 51784
Monteforte Cilento SA 17 564 52348
Sanza SA 18 2608 54956
Sala Consilina SA 18 12664 67620
Alfano SA 19 1023 68643
Atena Lucana SA 19 2336 70979
Roccadaspide SA 19 7209 78188
Orria SA 19 1089 79277
Laurito SA 19 788 80065

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SE of Battipaglia (50786 inhabitants)
48 Km SW of Potenza (67122 inhabitants)
65 Km SE of Salerno (135261 inhabitants)
70 Km SE of Cava de' Tirreni (53659 inhabitants)
81 Km SE of Avellino (54857 inhabitants)
86 Km SE of Scafati (50787 inhabitants)
86 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
19:04:15		 40.3438 15.3928 17 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 97778891
Reviewed
Rev100 		ML 1.5 2021-07-01
19:04:15		 40.3578 15.3858 11 2021-11-25
12:03:39		 Sala Sismica INGV-Roma 92115601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-01 19:04:15 ± 0.11
Latitude 40.3438 ± 0.0054
Longitude 15.3928 ± 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 97778891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 640
Semi-minor axis of confidence ellipse (meter) 242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.93979
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 92115601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-01 19:13:19

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 97778891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-25 12:03:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2021-07-01T19:04:32.90 0.3 undecidable manual P 152 102.2199 94 0.6 57
IV.MRVN.HHZ. 2021-07-01T19:04:32.80 0.3 undecidable manual P 40 104.3178 94 0.17 63
IV.GRIS.HNE. 2021-07-01T19:04:28.85 0.3 undecidable manual P 150 77.4669 95 0.35 63
IX.COL3.HHE.02 2021-07-01T19:04:28.30 0.6 undecidable manual S 352 38.4282 103 0.3 46
IX.MNT3.EHN.02 2021-07-01T19:04:27.18 0.6 undecidable manual P 329 63.6918 97 0.8 37
IV.MCEL.HHZ. 2021-07-01T19:04:27.91 0.6 undecidable manual S 93 34.6431 105 0.9 39
IV.MTSN.HNN. 2021-07-01T19:04:26.82 0.6 undecidable manual S 106 31.5462 107 0.61 44
IX.CGG3.HNN. 2021-07-01T19:04:25.12 0.6 undecidable manual S 26 24.5532 114 0.66 43
IX.STN3.HNZ.01 2021-07-01T19:04:25.92 0.6 undecidable manual S 46 30.0477 108 0.09 49
IV.SCHR.EHN. 2021-07-01T19:04:25.80 0.6 undecidable manual P 105 59.9955 97 -0.02 46
IV.SGO.HHN. 2021-07-01T19:04:24.40 0.6 undecidable manual S 343 25.0527 113 -0.19 48
IV.MCRV.HHZ. 2021-07-01T19:04:24.09 0.3 undecidable manual P 339 52.2033 99 -0.54 63
IV.MGR.HHZ. 2021-07-01T19:04:24.37 0.3 undecidable manual S 149 26.6511 111 -0.6 65
MN.CUC.HHZ. 2021-07-01T19:04:24.64 0.3 undecidable manual P 137 52.8027 98 -0.08 70
IX.CMP3.HNE.02 2021-07-01T19:04:24.24 0.3 undecidable manual P 322 43.2234 101 0.99 53
IV.MRLC.HHZ. 2021-07-01T19:04:23.82 0.3 undecidable manual P 10 46.5201 100 0.06 72
IT.SLC1.HGN. 2021-07-01T19:04:23.75 0.6 undecidable manual S 72 18.0708 124 0.81 41
IV.SLCN.HHE. 2021-07-01T19:04:23.81 0.6 undecidable manual S 76 20.868 119 0.23 49
IV.SIRI.HHZ. 2021-07-01T19:04:23.04 0.3 undecidable manual P 114 44.0226 101 -0.34 67
IX.SRN3.HNE. 2021-07-01T19:04:22.40 0.6 undecidable manual S 19 16.6722 126 -0.24 48
IX.COL3.HHE.02 2021-07-01T19:04:22.19 0.3 undecidable manual P 352 38.4282 103 -0.35 68
IV.CDRU.HHZ. 2021-07-01T19:04:22.66 0.6 undecidable manual S 335 17.7711 124 -0.22 49
IX.PGN3.HHN.02 2021-07-01T19:04:22.93 0.3 undecidable manual P 53 42.4242 101 -0.22 69
IV.MCEL.HHZ. 2021-07-01T19:04:21.83 0.3 undecidable manual P 93 34.6431 105 -0.14 71
IX.MRN3.HNE.01 2021-07-01T19:04:21.36 0.3 undecidable manual P 72 29.8479 108 0.09 74
IV.CMPR.HHZ. 2021-07-01T19:04:21.34 0.3 undecidable manual S 249 8.0808 150 0.25 72
IV.MTSN.HNN. 2021-07-01T19:04:21.49 0.3 undecidable manual P 106 31.5462 107 -0.02 73
IX.TEGI.HNN.01 2021-07-01T19:04:21.55 0.6 undecidable manual S 72 12.7761 136 -0.3 48
IX.STN3.HNZ.01 2021-07-01T19:04:21.03 0.1 undecidable manual P 46 30.0477 108 -0.26 93
IV.MGR.HHZ. 2021-07-01T19:04:20.37 0.1 undecidable manual P 149 26.6511 111 -0.43 91
IV.SLCN.HHE. 2021-07-01T19:04:20.00 0.1 undecidable manual P 76 20.868 119 0 100
IV.SGO.HHN. 2021-07-01T19:04:20.37 0.1 undecidable manual P 343 25.0527 113 -0.21 96
IX.CGG3.HNN. 2021-07-01T19:04:20.54 0.1 undecidable manual P 26 24.5532 114 0.04 100
IX.PST3.HNZ.01 2021-07-01T19:04:20.54 0.3 undecidable manual P 332 27.1506 111 -0.34 70
IV.CAGG.EHE. 2021-07-01T19:04:20.70 0.3 undecidable manual P 23 25.752 112 0.04 75
IX.SRN3.HNE. 2021-07-01T19:04:19.32 0.1 undecidable manual P 19 16.6722 126 -0.13 99
IV.CDRU.HHZ. 2021-07-01T19:04:19.44 0.1 undecidable manual P 335 17.7711 124 -0.15 99
IT.SLC1.HGN. 2021-07-01T19:04:19.78 0.3 undecidable manual P 72 18.0708 124 0.16 74
IX.TEGI.HNN.01 2021-07-01T19:04:18.83 0.3 undecidable manual P 72 12.7761 136 -0.17 74
IV.CMPR.HHZ. 2021-07-01T19:04:18.69 0.1 undecidable manual P 249 8.0808 150 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CMPR.HHN. ML:2.3 0.0019408350000000001 0.2304 AML other m 2021-07-01T19:04:21.61
IV.CMPR.HNE. ML:2.4 0.0025650000000000004 0.26 AML other m 2021-07-01T19:04:21.48
IV.CMPR.HNN. ML:2.3 0.0018140545 0.2432 AML other m 2021-07-01T19:04:21.61
IV.CMPR.HHE. ML:2.0 0.00085293205 0.2048 AML other m 2021-07-01T19:04:21.59
IV.CDRU.HHN. ML:1.5 0.0002214599 0.1664 AML other m 2021-07-01T19:04:23.92
IV.CDRU.HHE. ML:1.4 0.0001740533 0.2176 AML other m 2021-07-01T19:04:24.06
IV.MGR.HNN. ML:2.0 0.0005380000000000001 0.3 AML other m 2021-07-01T19:04:24.65
IV.MGR.HHN. ML:2.1 0.0005489899 0.1536 AML other m 2021-07-01T19:04:24.65
IV.MGR.HNE. ML:1.8 0.00033699999999999995 0.24 AML other m 2021-07-01T19:04:25.21
IV.MGR.HHE. ML:1.8 0.00032285535 0.2176 AML other m 2021-07-01T19:04:25.33
IV.SLCN.HNE. ML:2.0 0.0006450000000000001 0.32 AML other m 2021-07-01T19:04:25.69
IV.SGO.HHE. ML:1.5 0.00016351875 0.1664 AML other m 2021-07-01T19:04:26.28
IV.SLCN.HHE. ML:2.0 0.000696 0.34 AML other m 2021-07-01T19:04:27.42
IV.SLCN.HHN. ML:2.0 0.000641 0.46 AML other m 2021-07-01T19:04:27.49
IV.SLCN.HNN. ML:2.0 0.0006314999999999999 0.48 AML other m 2021-07-01T19:04:27.49
IV.SGO.HHN. ML:1.8 0.00032 1.84 AML other m 2021-07-01T19:04:28.07
IV.MCEL.HHN. ML:1.4 0.000097522085 0.32 AML other m 2021-07-01T19:04:30.43
IV.SIRI.HHE. ML:1.1 0.0000424663 0.2176 AML other m 2021-07-01T19:04:31.70
IV.MCEL.HHE. ML:1.5 0.00012011480000000001 0.32 AML other m 2021-07-01T19:04:29.42
IV.SIRI.HHN. ML:1.4 0.00008055447000000001 0.1792 AML other m 2021-07-01T19:04:32.60
IV.MRLC.HHE. ML:1.3 0.00005049866 0.3584 AML other m 2021-07-01T19:04:33.41
MN.CUC.HHE. ML:1.3 0.000048871584999999994 0.3712 AML other m 2021-07-01T19:04:38.35
IV.MRLC.HHN. ML:1.4 0.00007225 1.72 AML other m 2021-07-01T19:04:37.98
IV.MCRV.HHE. ML:1.2 0.00003772404 0.32 AML other m 2021-07-01T19:04:39.48
IV.MCRV.HHN. ML:1.5 0.0000757 0.16 AML other m 2021-07-01T19:04:39.35
IX.MNT3.EHN.02 ML:1.6 0.00006484999999999999 1.18 AML other m 2021-07-01T19:04:40.02
MN.CUC.HHN. ML:1.3 0.0000484 0.4 AML other m 2021-07-01T19:04:40.31
IX.MNT3.EHE.02 ML:1.5 0.000058575304999999995 0.4352 AML other m 2021-07-01T19:04:40.85
IV.MRVN.HHE. ML:1.2 0.000013547529999999999 0.256 AML other m 2021-07-01T19:04:48.13
IV.CDRU.HNN. ML:1.5 0.00021741605 0.1024 AML other m 2021-07-01T19:04:23.51
IV.CDRU.HNE. ML:2.1 0.00078036805 0.1664 AML other m 2021-07-01T19:04:23.37
IV.MCEL.HNE. ML:2.0 0.00036553855 0.8192 AML other m 2021-07-01T19:04:32.30
IV.MCEL.HNN. ML:1.9 0.0002807213 0.5376 AML other m 2021-07-01T19:04:31.34
IV.SIRI.HNE. ML:1.5 0.000099347765 0.256 AML other m 2021-07-01T19:04:32.51
IV.SIRI.HNN. ML:1.4 0.00007172429 0.2304 AML other m 2021-07-01T19:04:31.31
IV.MRLC.HNN. ML:1.0 0.000032394825000000005 0.32 AML other m 2021-07-01T19:04:35.26
IV.CET2.HHN. ML:2.0 0.000095253915 0.64 AML other m 2021-07-01T19:04:49.67
IV.CET2.HHE. ML:1.8 0.000056099875 0.7168 AML other m 2021-07-01T19:04:49.13
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