Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 04-08-2019 and time 04:58:45 (UTC) in region 4 km NE Torre Orsaia (SA)

A magnitude ML 2.1 earthquake occured in region: 4 km NE Torre Orsaia (SA), on

  • 04-08-2019 04:58:45 (UTC)
  • 04-08-2019 06:58:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1520, 15.5060 at 292 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
Torre Orsaia SA 4 2118 2118
Caselle in Pittari SA 4 1956 4074
Morigerati SA 4 665 4739
Santa Marina SA 6 3243 7982
Alfano SA 7 1023 9005
Roccagloriosa SA 8 1722 10727
Vibonati SA 8 3293 14020
Laurito SA 9 788 14808
Tortorella SA 9 523 15331
Ispani SA 9 1026 16357
Rofrano SA 9 1576 17933
Casaletto Spartano SA 10 1420 19353
Celle di Bulgheria SA 11 1922 21275
Sanza SA 11 2608 23883
Torraca SA 12 1263 25146
San Giovanni a Piro SA 12 3780 28926
Montano Antilia SA 12 2077 31003
Sapri SA 14 6770 37773
Futani SA 15 1204 38977
Buonabitacolo SA 16 2549 41526
Casalbuono SA 17 1194 42720
Cuccaro Vetere SA 17 573 43293
Camerota SA 17 6985 50278
San Mauro la Bruca SA 19 603 50881
Centola SA 19 5168 56049

Municipalities with at least 50000 inhabitants

An earthquake occurred to
60 Km SW of Potenza (67122 inhabitants)
67 Km SE of Battipaglia (50786 inhabitants)
86 Km SE of Salerno (135261 inhabitants)
91 Km SE of Cava de' Tirreni (53659 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 2.1 2019-08-04
04:58:45		 40.1517 15.5058 292 2019-11-13
14:31:06		 Bollettino Sismico Italiano INGV 73266401
Reviewed
Rev100 		ML 1.5 2019-08-04
04:59:14		 38.8782 15.958 10 2019-08-04
05:20:33		 Sala Sismica INGV-Roma 71156121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-04 04:58:45 ± 0.45
Latitude 40.1517 ± 0.0288
Longitude 15.5058 ± 0.0624
Depth (km) 292 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73266401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5244
Semi-minor axis of confidence ellipse (meter) 1887
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 5240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.18895
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 24
Type of magnitude ML
Reference to an origin 71156121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-04 05:20:33

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 73266401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-15 10:41:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2019-08-04T05:00:56.47 3.0 positive manual Pg 13.46 0
IV.CESX.HHZ. 2019-08-04T05:00:27.37 3.0 undecidable manual Pn 2.79 0
IV.MOMA.HHZ. 2019-08-04T05:00:24.80 3.0 undecidable manual Pn -1.98 0
IV.COLB.HHZ. 2019-08-04T05:00:22.25 3.0 undecidable manual Sn -2.79 0
AC.VLO.HHZ. 2019-08-04T05:00:19.04 3.0 undecidable manual Sn -9.99 0
IV.PLAC.HHE. 2019-08-04T05:00:04.26 0.6 undecidable manual S 157 205.1391 144 -1.09 20
AC.VLO.HHZ. 2019-08-04T05:00:02.03 3.0 undecidable manual Pg 1.9 0
IV.PTRJ.HNZ. 2019-08-04T04:59:58.31 3.0 undecidable manual Pn -0.7 0
IV.CELI.HHZ. 2019-08-04T04:59:57.11 0.6 undecidable manual S 134 119.1918 157 0.97 30
IV.CET2.HHZ. 2019-08-04T04:59:53.23 0.6 undecidable manual S 151 78.9654 164 -0.03 44
IV.SALB.HHZ. 2019-08-04T04:59:52.95 0.6 undecidable manual S 113 77.5668 165 -0.23 43
IV.CAGR.HHZ. 2019-08-04T04:59:52.30 3.0 undecidable manual Pg 2.87 0
IV.ESML.HHZ. 2019-08-04T04:59:51.17 3.0 negative manual Pg 4.51 0
IV.GALF.HHZ. 2019-08-04T04:59:44.32 3.0 negative manual Pn -3.74 0
IV.AIO.HHE. 2019-08-04T04:59:35.02 0.3 undecidable manual P 186 242.9679 139 0.54 30
IV.MTTG.HHE. 2019-08-04T04:59:34.48 0.3 undecidable manual P 176 238.8831 139 0.34 32
IV.GMB.BHE. 2019-08-04T04:59:33.16 0.3 undecidable manual P 173 221.8113 141 0.37 36
IV.SOI.EHZ. 2019-08-04T04:59:33.42 0.1 undecidable manual P 168 235.3866 140 -0.44 43
IV.IVGP.HHN. 2019-08-04T04:59:32.30 0.3 undecidable manual P 194 200.244 144 1.13 31
MN.CEL.HHZ. 2019-08-04T04:59:31.30 0.1 undecidable manual P 171 212.4318 143 -0.77 45
IV.PLAC.HHE. 2019-08-04T04:59:31.16 0.1 undecidable manual P 157 205.1391 144 -0.37 54
IV.MSRU.HHE. 2019-08-04T04:59:31.20 0.3 undecidable manual P 180 209.4348 143 -0.65 36
IV.LADO.EHE. 2019-08-04T04:59:28.24 0.1 undecidable manual P 127 158.3193 151 -0.12 72
MN.TIP.HHZ. 2019-08-04T04:59:27.93 0.1 undecidable manual P 135 151.9368 152 -0.04 76
IV.SPS2.HHZ. 2019-08-04T04:59:27.03 0.1 undecidable manual P 143 118.992 157 0.83 65
OT.TAR1.HHZ. 2019-08-04T04:59:27.82 0.3 undecidable manual P 74 156.0216 151 -0.4 52
IV.CELI.HHZ. 2019-08-04T04:59:26.85 0.1 undecidable manual P 134 119.1918 157 0.64 70
IV.PIPA.HHZ. 2019-08-04T04:59:26.79 0.3 undecidable manual P 123 133.866 154 -0.17 58
IV.CAR1.HHZ. 2019-08-04T04:59:26.08 0.1 undecidable manual P 149 116.3946 157 0.01 82
IV.TDS.HHZ. 2019-08-04T04:59:25.52 0.3 undecidable manual P 127 89.3439 162 0.61 57
IV.SALB.HHZ. 2019-08-04T04:59:24.32 0.3 undecidable manual P 113 77.5668 165 -0.18 65
IV.MCEL.HHN. 2019-08-04T04:59:24.27 0.3 undecidable manual P 52 31.6461 174 0.86 57
IV.CET2.HHZ. 2019-08-04T04:59:24.18 0.3 undecidable manual P 151 78.9654 164 -0.36 62
IV.BULG.HHN. 2019-08-04T04:59:23.35 0.3 undecidable manual P 233 13.5753 177 0.12 73
IV.GRIS.HNE. 2019-08-04T04:59:23.44 0.3 undecidable manual P 147 54.3012 169 -0.4 64
IV.MGR.HHZ. 2019-08-04T04:59:23.11 0.1 undecidable manual P 111 4.2957 179 -0.09 100
IV.SIRI.HNE. 2019-08-04T04:59:23.79 0.3 undecidable manual P 84 30.8469 174 0.39 67
MN.CUC.HHE. 2019-08-04T04:59:23.04 0.1 undecidable manual P 124 31.5462 174 -0.37 90
IV.SLCN.HNZ. 2019-08-04T04:59:22.50 0.3 undecidable manual P 22 28.5492 174 -0.87 57
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIPA.HHN. ML:2.3 0.000021624285 0.2208 AML other m 2019-08-04T04:59:28.86
IV.PIPA.HHE. ML:2.5 0.000027898584999999996 0.1792 AML other m 2019-08-04T04:59:28.10
IV.SPS2.HHN. ML:2.0 0.000008159331 0.2016 AML other m 2019-08-04T04:59:27.91
IV.SPS2.HHE. ML:1.7 0.000007311665999999999 0.24 AML other m 2019-08-04T04:59:27.73
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