Earthquake with magnitude of ML 1.7 on date 01-07-2021 and time 21:03:22 (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 19:03:22 (UTC)
  • 01-07-2021 21:03:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.342, 15.396 at 17 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.

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 2 248 1559
Sacco SA 5 492 2051
Laurino SA 5 1548 3599
Roscigno SA 8 817 4416
Campora SA 10 439 4855
Corleto Monforte SA 11 592 5447
Bellosguardo SA 12 794 6241
San Rufo SA 12 1754 7995
Stio SA 12 872 8867
Monte San Giacomo SA 13 1572 10439
Felitto SA 13 1283 11722
Teggiano SA 13 7976 19698
Magliano Vetere SA 13 695 20393
Sant'Angelo a Fasanella SA 14 635 21028
Cannalonga SA 14 1063 22091
Sassano SA 15 5013 27104
San Pietro al Tanagro SA 15 1695 28799
Rofrano SA 15 1576 30375
Moio della Civitella SA 15 1827 32202
Ottati SA 15 618 32820
Novi Velia SA 16 2324 35144
Gioi SA 16 1278 36422
Sant'Arsenio SA 16 2815 39237
Aquara SA 17 1545 40782
Vallo della Lucania SA 17 8531 49313
Castel San Lorenzo SA 17 2471 51784
Monteforte Cilento SA 17 564 52348
Sanza SA 17 2608 54956
Sala Consilina SA 18 12664 67620
Alfano SA 18 1023 68643
Atena Lucana SA 19 2336 70979
Laurito SA 19 788 71767
Roccadaspide SA 19 7209 78976
Orria SA 20 1089 80065
Montano Antilia SA 20 2077 82142

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)
81 Km SE of Avellino (54857 inhabitants)
86 Km SE of Scafati (50787 inhabitants)
87 Km E of Castellammare di Stabia (66466 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
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 19:03:22 ± 0.11
Latitude 40.3420 ± 0.0045
Longitude 15.3955 ± 0.0071
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92115981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 19
Magnitude 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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance 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
MN.CUC.HNN. 2021-07-01T19:03:32.72 0.6 undecidable manual P 137 0.473 99 0.15 48
IV.SLCN.HHZ. 2021-07-01T19:03:32.16 0.6 undecidable manual S 75 0.1871 120 0.68 45
IV.MCRV.HHZ. 2021-07-01T19:03:32.20 0.3 undecidable manual P 339 0.473 99 -0.36 69
IV.SGO.HHZ. 2021-07-01T19:03:32.76 0.3 undecidable manual S 343 0.2284 114 0.18 75
IV.MGR.HHZ. 2021-07-01T19:03:32.40 0.1 undecidable manual S 149 0.2374 113 -0.42 94
IV.SIRI.HHZ. 2021-07-01T19:03:31.71 0.3 undecidable manual P 114 0.3939 101 0.48 69
IX.PGN3.HHE.02 2021-07-01T19:03:31.00 0.3 undecidable manual P 53 0.3822 102 -0.03 75
IV.MRLC.HHN. 2021-07-01T19:03:31.30 0.6 undecidable manual P 10 0.42 101 -0.38 46
IX.CMP3.HNN. 2021-07-01T19:03:31.20 0.1 undecidable manual P 322 0.3912 102 0.01 100
IV.CDRU.HHE. 2021-07-01T19:03:30.65 0.3 undecidable manual S 335 0.1628 125 -0.23 76
IX.SRN3.HHE.02 2021-07-01T19:03:30.43 0.3 undecidable manual S 18 0.152 127 -0.18 76
IX.COL3.HNE.02 2021-07-01T19:03:30.29 0.6 undecidable manual P 352 0.348 104 -0.18 49
IV.MTSN.HNZ. 2021-07-01T19:03:29.82 0.6 undecidable manual P 105 0.2815 108 0.45 47
IV.CMPR.HHZ. 2021-07-01T19:03:29.35 0.3 undecidable manual S 251 0.0746 150 0.27 76
IX.STN3.HNZ.01 2021-07-01T19:03:29.07 0.3 undecidable manual P 46 0.2707 109 -0.12 75
IV.MCEL.HHN. 2021-07-01T19:03:29.88 0.6 undecidable manual P 93 0.3103 106 0.05 51
IX.TEGI.HNZ.01 2021-07-01T19:03:29.45 0.3 undecidable manual S 71 0.1142 137 -0.32 74
IV.SLCN.HHZ. 2021-07-01T19:03:28.05 0.3 undecidable manual P 75 0.1871 120 0.16 76
IV.CAGG.EHZ. 2021-07-01T19:03:28.72 0.6 undecidable manual P 22 0.2329 113 0.13 51
IV.SGO.HHZ. 2021-07-01T19:03:28.60 0.3 undecidable manual P 343 0.2284 114 0.08 76
IV.MGR.HHZ. 2021-07-01T19:03:28.36 0.3 undecidable manual P 149 0.2374 113 -0.3 73
IX.CGG3.HNZ.01 2021-07-01T19:03:28.56 0.3 undecidable manual P 26 0.2221 115 0.14 76
IV.CDRU.HHE. 2021-07-01T19:03:27.59 0.3 undecidable manual P 335 0.1628 125 0.05 78
IX.SRN3.HHE.02 2021-07-01T19:03:27.36 0.3 undecidable manual P 18 0.152 127 -0.02 79
IX.TEGI.HNZ.01 2021-07-01T19:03:26.78 0.3 undecidable manual P 71 0.1142 137 -0.12 78
IV.CMPR.HHZ. 2021-07-01T19:03:26.68 0.3 undecidable manual P 251 0.0746 150 0.18 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CMPR.HHN. ML:1.9 0.0007083456 0.0768 AML other m 2021-07-01T19:03:29.56
IV.CMPR.HHE. ML:1.7 0.000415 0.2 AML other m 2021-07-01T19:03:29.59
IV.SLCN.HHE. ML:1.7 0.00029176395 0.3456 AML other m 2021-07-01T19:03:35.42
IV.SLCN.HNE. ML:1.6 0.00026223985 0.256 AML other m 2021-07-01T19:03:33.69
IV.MGR.HHE. ML:1.4 0.00012975385 0.2432 AML other m 2021-07-01T19:03:33.22
IV.MGR.HHN. ML:1.7 0.0002472174 0.2432 AML other m 2021-07-01T19:03:32.65
IV.SLCN.HNN. ML:1.7 0.0002730373 0.4096 AML other m 2021-07-01T19:03:36.69
IV.SLCN.HHN. ML:1.7 0.00027257285 0.4736 AML other m 2021-07-01T19:03:35.49
IV.VCEL.EHE. ML:3 0.0001495 0.16 AML other m 2021-07-01T19:04:09.86
IV.VCEL.EHN. ML:2.8 0.00010265 0.48 AML other m 2021-07-01T19:04:09.87
IV.CMPR.HNE. ML:2.1 0.0011444777 0.2432 AML other m 2021-07-01T19:03:29.48
IV.CMPR.HNN. ML:1.9 0.0006627581 0.0896 AML other m 2021-07-01T19:03:29.57
IV.MGR.HNE. ML:1.5 0.0001573288 0.2304 AML other m 2021-07-01T19:03:32.76
IV.MGR.HNN. ML:1.7 0.0002508387 0.2688 AML other m 2021-07-01T19:03:32.64
IX.STN3.HNE.01 ML:4.1 0.05917182 0.3712 AML other m 2021-07-01T19:03:36.37
IV.SIRI.HHN. ML:1.2 4.4082445E-5 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