Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 05-12-2020 and time 20:40:44 (Italy) in region 2 km NW Tolve (PZ)

A magnitude ML 1.9 earthquake occured in region: 2 km NW Tolve (PZ), on

  • 05-12-2020 19:40:44 (UTC)
  • 05-12-2020 20:40:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.71, 16 at 11 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.

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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
Tolve PZ 2 3251 3251
Oppido Lucano PZ 6 3813 7064
Cancellara PZ 7 1309 8373
San Chirico Nuovo PZ 8 1368 9741
Vaglio Basilicata PZ 8 2047 11788
Pietragalla PZ 11 4160 15948
Acerenza PZ 11 2402 18350
Brindisi Montagna PZ 12 908 19258
Trivigno PZ 14 678 19936
Albano di Lucania PZ 14 1435 21371
Tricarico MT 15 5388 26759
Genzano di Lucania PZ 16 5750 32509
Banzi PZ 17 1361 33870
Campomaggiore PZ 17 811 34681
Potenza PZ 18 67122 101803

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Potenza (67122 inhabitants)
48 Km W of Altamura (70396 inhabitants)
51 Km W of Matera (60436 inhabitants)
62 Km S of Cerignola (58396 inhabitants)
63 Km SW of Andria (100440 inhabitants)
72 Km SW of Barletta (94814 inhabitants)
72 Km SW of Trani (56217 inhabitants)
73 Km SW of Bisceglie (55422 inhabitants)
73 Km SW of Bitonto (55540 inhabitants)
75 Km SW of Molfetta (59874 inhabitants)
86 Km SW of Bari (326344 inhabitants)
87 Km E of Battipaglia (50786 inhabitants)
92 Km SE of Foggia (151991 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
Reviewed
Rev100 		ML 1.9 2020-12-05
19:40:44		 40.71 16 11 2020-12-05
19:51:26		 Sala Sismica INGV-Roma 85223251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-05 19:40:44 ± 0.1
Latitude 40.71 ± 0.01
Longitude 16.00 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85223251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 673
Semi-minor axis of confidence ellipse (meter) 459
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 305
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 27
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
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 85223251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-05 19:51:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.MATE.HHZ. 2020-12-05T19:41:03.89 3.0 undecidable manual S -0.79 0
IV.SGRT.HHZ. 2020-12-05T19:41:03.52 3.0 undecidable manual P -2.03 0
IV.SCHR.EHZ. 2020-12-05T19:41:02.73 0.6 undecidable manual S 174 0.5135 50 0.4 43
IV.AMUR.HHN. 2020-12-05T19:41:02.06 0.6 undecidable manual S 66 0.4964 50 0.24 44
IV.NOCI.HHZ. 2020-12-05T19:41:01.50 3.0 positive manual P 0.47 0
IV.CRAC.EHN. 2020-12-05T19:41:01.20 0.3 undecidable manual S 135 0.4641 50 0.32 66
IV.SLCN.HHZ. 2020-12-05T19:41:00.03 0.6 undecidable manual S 221 0.4254 50 0.31 44
IV.MCEL.HHZ. 2020-12-05T19:40:59.76 0.3 undecidable manual S 202 0.4137 50 0.38 65
IX.VGG3.HNZ. 2020-12-05T19:40:58.82 0.6 undecidable manual S 192 0.3813 50 0.4 44
IV.MRVN.HHZ. 2020-12-05T19:40:58.82 0.6 undecidable manual S 23 0.3804 50 0.44 43
IV.MIGL.HHZ. 2020-12-05T19:40:57.48 0.6 undecidable manual S 107 0.3489 50 0.02 48
IX.STN3.HHZ.02 2020-12-05T19:40:57.02 0.6 undecidable manual S 236 0.3211 50 0.39 44
IV.CRAC.EHN. 2020-12-05T19:40:54.32 0.1 undecidable manual P 135 0.4641 50 0.33 87
IV.PALZ.HHZ. 2020-12-05T19:40:54.09 0.6 undecidable manual S 352 0.2365 50 -0.03 49
IV.SCHR.EHZ. 2020-12-05T19:40:54.32 0.1 undecidable manual P 174 0.5135 50 -0.5 83
IV.AMUR.HHN. 2020-12-05T19:40:54.71 0.1 undecidable manual P 66 0.4964 50 0.18 89
IX.VGG3.HNZ. 2020-12-05T19:40:52.19 0.1 undecidable manual P 192 0.3813 50 -0.38 88
IV.MCEL.HHZ. 2020-12-05T19:40:52.54 0.1 undecidable manual P 202 0.4137 50 -0.58 82
IV.MRVN.HHZ. 2020-12-05T19:40:52.45 0.1 undecidable manual P 23 0.3804 50 -0.09 93
IV.PZUN.HHZ. 2020-12-05T19:40:52.32 0.6 undecidable manual S 247 0.161 121 0.52 44
IV.SLCN.HHZ. 2020-12-05T19:40:52.86 0.1 positive manual P 221 0.4254 50 -0.46 85
IV.PTRP.HHZ. 2020-12-05T19:40:52.98 0.6 undecidable manual S 167 0.1934 50 0.12 48
IV.MIGL.HHZ. 2020-12-05T19:40:51.43 0.1 undecidable manual P 107 0.3489 50 -0.58 83
IX.STN3.HHZ.02 2020-12-05T19:40:51.53 0.1 undecidable manual P 236 0.3211 50 -0.01 96
IV.PALZ.HHZ. 2020-12-05T19:40:49.71 1.0 undecidable manual P 352 0.2365 50 -0.38 23
IV.ACER.HNZ. 2020-12-05T19:40:49.92 0.6 undecidable manual S 330 0.089 137 0.31 47
IV.PTRP.HHZ. 2020-12-05T19:40:49.72 0.6 positive manual P 167 0.1934 50 0.37 46
IX.PGN3.HHN.02 2020-12-05T19:40:49.35 0.1 undecidable manual P 229 0.2077 50 -0.25 93
IV.PZUN.HHZ. 2020-12-05T19:40:48.76 0.1 undecidable manual P 247 0.161 121 0.01 99
IV.ACER.HNZ. 2020-12-05T19:40:47.51 0.1 positive manual P 330 0.089 137 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ACER.HHE. ML:2.5 0.00365 0.32 AML other m 2020-12-05T19:40:50.29
IV.ACER.HNE. ML:2.4 0.00345 0.34 AML other m 2020-12-05T19:40:50.30
IV.ACER.HNN. ML:2.3 0.002425 0.58 AML other m 2020-12-05T19:40:50.08
IV.ACER.HHN. ML:2.3 0.00253 0.58 AML other m 2020-12-05T19:40:50.08
IV.PZUN.HHE. ML:1.5 0.0002745 0.68 AML other m 2020-12-05T19:40:52.80
IV.PZUN.HNE. ML:1.6 0.000289 0.68 AML other m 2020-12-05T19:40:52.80
IV.PZUN.HNN. ML:1.7 0.000377 0.7 AML other m 2020-12-05T19:40:53.08
IV.PZUN.HHN. ML:1.6 0.00033 0.7 AML other m 2020-12-05T19:40:53.08
IX.STN3.HHE.02 ML:3.5 0.01164 0.36 AML other m 2020-12-05T19:40:58.74
IV.MCEL.HHE. ML:1.8 0.00017195 1.52 AML other m 2020-12-05T19:40:59.98
IX.STN3.HHN.02 ML:3.3 0.008565 0.66 AML other m 2020-12-05T19:41:00.18
IV.SLCN.HHE. ML:1.9 0.0002415 0.22 AML other m 2020-12-05T19:41:01.47
IV.MCEL.HNE. ML:2.2 0.000525 0.78 AML other m 2020-12-05T19:41:01.92
IV.MCEL.HNN. ML:2.1 0.0003605 0.26 AML other m 2020-12-05T19:41:01.83
IV.SLCN.HHN. ML:1.8 0.000181 1.46 AML other m 2020-12-05T19:41:03.81
IV.SCHR.EHE. ML:1.9 0.000171 0.7 AML other m 2020-12-05T19:41:03.78
IV.SCHR.EHN. ML:1.7 0.00011265 0.8 AML other m 2020-12-05T19:41:03.57
IV.MCEL.HHN. ML:1.8 0.00018 0.5 AML other m 2020-12-05T19:41:05.13
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