Earthquake with magnitude of ML 1.6 on date 20-08-2019 and time 09:47:53 (UTC) in region 7 km N Viggiano (PZ)

A magnitude ML 1.6 earthquake occured in region: 7 km N Viggiano (PZ), on

  • 20-08-2019 09:47:53 (UTC)
  • 20-08-2019 11:47:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.4, 15.91 at 16 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
Viggiano PZ 7 3329 3329
Marsicovetere PZ 8 5546 8875
Laurenzana PZ 8 1797 10672
Calvello PZ 10 1948 12620
Corleto Perticara PZ 11 2511 15131
Anzi PZ 13 1696 16827
Montemurro PZ 13 1235 18062
Grumento Nova PZ 13 1700 19762
Tramutola PZ 14 3089 22851
Abriola PZ 15 1531 24382
Marsico Nuovo PZ 15 4098 28480
Paterno PZ 16 3368 31848
Spinoso PZ 16 1462 33310
Guardia Perticara PZ 16 552 33862
Armento PZ 17 631 34493
Sarconi PZ 17 1404 35897
Moliterno PZ 18 4062 39959
Pietrapertosa PZ 18 1032 40991
Castelmezzano PZ 18 800 41791
Gorgoglione MT 20 989 42780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SE of Potenza (67122 inhabitants)
65 Km W of Matera (60436 inhabitants)
72 Km SW of Altamura (70396 inhabitants)
82 Km E of Battipaglia (50786 inhabitants)
96 Km S of Cerignola (58396 inhabitants)
97 Km SW of Andria (100440 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.6 2019-08-20
09:47:53
40.4 15.91 16 2019-08-20
10:02:21
Sala Sismica INGV-Roma 71646041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 09:47:53 ± 0.1
Latitude 40.40 ± 0.01
Longitude 15.91 ± 0.01
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71646041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 682
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.69248
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 71646041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 10:02:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2019-08-20T09:48:10.06 0.6 undecidable manual S 260 0.4721 98 0.3 46
IV.MIGL.HHZ. 2019-08-20T09:48:09.45 0.6 undecidable manual S 63 0.4488 98 0.38 45
MN.CUC.HHZ. 2019-08-20T09:48:08.60 0.6 undecidable manual S 190 0.4146 99 0.53 44
IV.ACER.HHZ. 2019-08-20T09:48:08.14 0.6 undecidable manual S 3 0.3849 100 0.93 37
IV.MGR.HHZ. 2019-08-20T09:48:07.84 0.6 undecidable manual S 226 0.3813 100 0.75 41
IV.MRVN.HHZ. 2019-08-20T09:48:06.85 0.6 positive manual P 18 0.6925 95 0.34 43
YZ.POLL1.HHE.00 2019-08-20T09:48:05.78 0.3 undecidable manual P 138 0.6331 95 0.29 67
IV.SALB.HHE. 2019-08-20T09:48:05.38 0.6 undecidable manual P 148 0.6196 95 0.11 46
IV.BULG.HHZ. 2019-08-20T09:48:03.83 0.3 undecidable manual P 232 0.5216 97 0.23 69
IX.STN3.HHZ.02 2019-08-20T09:48:03.06 0.6 undecidable manual S 303 0.2365 110 0.11 50
IV.CMPR.HHZ. 2019-08-20T09:48:02.46 0.3 undecidable manual P 260 0.4721 98 -0.31 69
IV.SLCN.HHZ. 2019-08-20T09:48:02.32 0.6 undecidable manual S 267 0.214 113 0 51
IX.PGN3.HHZ.02 2019-08-20T09:48:02.28 1.0 undecidable manual S 332 0.1916 116 0.56 23
IV.SIRI.HHZ. 2019-08-20T09:48:02.78 0.6 undecidable manual S 189 0.2221 112 0.23 49
IV.MGR.HHZ. 2019-08-20T09:48:01.02 0.3 undecidable manual P 226 0.3813 100 -0.2 71
IV.ACER.HHZ. 2019-08-20T09:48:01.27 0.1 negative manual P 3 0.3849 100 -0.02 99
MN.CUC.HHZ. 2019-08-20T09:48:01.55 0.3 undecidable manual P 190 0.4146 99 -0.24 70
IV.PTRP.HHZ. 2019-08-20T09:48:01.00 0.6 undecidable manual S 43 0.1637 122 0 52
IV.MIGL.HHZ. 2019-08-20T09:48:01.86 0.3 positive manual P 63 0.4488 98 -0.51 66
IV.MCEL.HHZ. 2019-08-20T09:47:59.63 0.6 undecidable manual S 228 0.1151 134 -0.22 49
IV.SIRI.HHZ. 2019-08-20T09:47:58.28 0.1 positive manual P 189 0.2221 112 -0.32 96
IX.VGG3.HNZ.01 2019-08-20T09:47:58.96 0.6 undecidable manual S 188 0.0665 151 -0.02 52
IV.SLCN.HHZ. 2019-08-20T09:47:58.35 0.1 negative manual P 267 0.214 113 -0.12 100
IX.STN3.HHZ.02 2019-08-20T09:47:58.64 0.3 undecidable manual P 303 0.2365 110 -0.19 74
IV.PTRP.HHZ. 2019-08-20T09:47:57.42 0.3 positive manual P 43 0.1637 122 -0.29 73
IX.PGN3.HHZ.02 2019-08-20T09:47:57.81 0.3 undecidable manual P 332 0.1916 116 -0.32 72
IV.MCEL.HHZ. 2019-08-20T09:47:56.60 0.3 undecidable manual P 228 0.1151 134 -0.44 71
IX.VGG3.HNZ.01 2019-08-20T09:47:56.85 0.1 undecidable manual P 188 0.0665 151 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCEL.HHE. ML:1.8 0.00048089855 0.2048 AML other m 2019-08-20T09:47:59.86
IV.MCEL.HHN. ML:1.6 0.00029189835 0.1024 AML other m 2019-08-20T09:48:00.38
IV.MCEL.HNE. ML:1.8 0.0004485271 0.1856 AML other m 2019-08-20T09:47:59.87
IV.MCEL.HNN. ML:1.5 0.0002607835 0.1024 AML other m 2019-08-20T09:48:00.38
IV.PTRP.HHE. ML:1.5 0.00021108895 0.2816 AML other m 2019-08-20T09:48:02.60
IV.PTRP.HHN. ML:1.7 0.0003157755 0.5184 AML other m 2019-08-20T09:48:03.34
IV.SIRI.HHE. ML:1.7 0.00026286765 0.2368 AML other m 2019-08-20T09:48:03.38
IV.SIRI.HHN. ML:1.5 0.0001824989 0.2176 AML other m 2019-08-20T09:48:05.64
IV.SIRI.HNE. ML:1.7 0.0002438091 0.2176 AML other m 2019-08-20T09:48:03.49
IV.SIRI.HNN. ML:1.5 0.0001684117 0.1984 AML other m 2019-08-20T09:48:05.75
IV.SLCN.HHE. ML:1.8 0.00036002745 0.4224 AML other m 2019-08-20T09:48:03.45
IV.SLCN.HHN. ML:1.6 0.0002039464 0.4416 AML other m 2019-08-20T09:48:04.01
IV.SLCN.HNE. ML:1.8 0.00036766105 0.4096 AML other m 2019-08-20T09:48:03.24
IV.SLCN.HNN. ML:1.6 0.00021621285 0.4032 AML other m 2019-08-20T09:48:04.03
IX.STN3.HHE.02 ML:3.1 0.006296058 0.4608 AML other m 2019-08-20T09:48:05.52
IX.STN3.HHN.02 ML:3 0.005880621 0.4032 AML other m 2019-08-20T09:48:08.22
IV.MGR.HHE. ML:1.1 3.702688E-5 0.256 AML other m 2019-08-20T09:48:09.01
IV.MGR.HHN. ML:1.2 4.255355E-5 0.3008 AML other m 2019-08-20T09:48:11.00
IV.MGR.HNE. ML:2.3 0.00054995355 0.2624 AML other m 2019-08-20T09:48:23.64
IV.MGR.HNN. ML:2.3 0.00058646865 0.6976 AML other m 2019-08-20T09:48:13.16
IV.ACER.HHE. ML:1.8 0.000170586145 0.2624 AML other m 2019-08-20T09:48:08.32
IV.ACER.HHN. ML:1.8 0.0001792803 0.1984 AML other m 2019-08-20T09:48:08.35
IV.ACER.HNE. ML:1.8 0.00019241405 0.5184 AML other m 2019-08-20T09:48:09.27
IV.ACER.HNN. ML:1.7 0.00015856701 0.384 AML other m 2019-08-20T09:48:09.07
MN.CUC.HHE. ML:1.1 3.498949E-5 0.2368 AML other m 2019-08-20T09:48:10.39
MN.CUC.HHN. ML:1 2.68335E-5 0.1792 AML other m 2019-08-20T09:48:10.20
MN.CUC.HNE. ML:1.4 6.295874E-5 0.416 AML other m 2019-08-20T09:48:16.93
MN.CUC.HNN. ML:1.4 6.9032805E-5 0.8 AML other m 2019-08-20T09:48:17.88
IV.MIGL.HHE. ML:1.6 0.000104999065 0.256 AML other m 2019-08-20T09:48:11.97
IV.MIGL.HHN. ML:1.6 9.910022E-5 0.6016 AML other m 2019-08-20T09:48:18.99
IV.CMPR.HHE. ML:0.9 1.9847675E-5 0.3392 AML other m 2019-08-20T09:48:11.66
IV.CMPR.HHN. ML:1 2.4209635E-5 0.3776 AML other m 2019-08-20T09:48:10.41
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download