Earthquake with magnitude of ML 1.9 on date 21-05-2020 and time 09:52:16 (UTC) in region 6 km W Potenza (PZ)

A magnitude ML 1.9 earthquake occured in region: 6 km W Potenza (PZ), on

  • 21-05-2020 09:52:16 (UTC)
  • 21-05-2020 11:52:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.62, 15.74 at 21 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Potenza PZ 6 67122 67122
Pignola PZ 6 6962 74084
Tito PZ 7 7332 81416
Picerno PZ 9 5985 87401
Satriano di Lucania PZ 12 2374 89775
Ruoti PZ 12 3579 93354
Avigliano PZ 13 11577 104931
Abriola PZ 14 1531 106462
Baragiano PZ 14 2671 109133
Sasso di Castalda PZ 16 835 109968
Vaglio Basilicata PZ 16 2047 112015
Brindisi Montagna PZ 17 908 112923
Savoia di Lucania PZ 17 1127 114050
Sant'Angelo Le Fratte PZ 18 1429 115479
Calvello PZ 18 1948 117427
Brienza PZ 19 4078 121505
Pietragalla PZ 19 4160 125665
Anzi PZ 19 1696 127361
Cancellara PZ 20 1309 128670
Balvano PZ 20 1830 130500

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of Potenza (67122 inhabitants)
64 Km E of Battipaglia (50786 inhabitants)
72 Km W of Altamura (70396 inhabitants)
72 Km W of Matera (60436 inhabitants)
73 Km S of Cerignola (58396 inhabitants)
82 Km SW of Andria (100440 inhabitants)
83 Km E of Salerno (135261 inhabitants)
86 Km E of Avellino (54857 inhabitants)
88 Km E of Cava de' Tirreni (53659 inhabitants)
90 Km SW of Barletta (94814 inhabitants)
92 Km SW of Trani (56217 inhabitants)
94 Km SW of Bisceglie (55422 inhabitants)
95 Km S of Foggia (151991 inhabitants)
97 Km SW of Bitonto (55540 inhabitants)
97 Km SW of Molfetta (59874 inhabitants)
99 Km SE of Benevento (60091 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 1.9 2020-05-21
09:52:16
40.62 15.74 21 2020-11-19
12:36:47
Bollettino Sismico Italiano INGV 79930041
Reviewed
Rev100
ML 2.0 2020-05-21
09:52:16
40.62 15.72 24 2020-05-21
10:00:25
Sala Sismica INGV-Roma 79401061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-21 09:52:16 ± 0.1
Latitude 40.62 ± 0.00
Longitude 15.74 ± 0.01
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79930041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 604
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.60884
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 79930041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-05 15:00:05

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 79401061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-21 10:00:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MCRV.HHN. 2020-05-21T09:52:34.10 0.6 undecidable manual S 291 0.4658 104 0.86 37
IV.SCHR.EHZ. 2020-05-21T09:52:34.26 0.6 undecidable manual S 149 0.4901 103 0.31 45
IV.SIRI.HHZ. 2020-05-21T09:52:33.24 0.6 undecidable manual S 168 0.447 104 0.53 43
IV.CMPR.HHZ. 2020-05-21T09:52:32.75 0.6 undecidable manual S 228 0.4506 104 -0.06 47
IV.PALZ.HHZ. 2020-05-21T09:52:30.27 0.6 undecidable manual S 27 0.3633 108 -0.06 49
IV.VULT.HHZ. 2020-05-21T09:52:30.03 0.6 undecidable manual S 344 0.3489 109 0.11 47
IX.COL3.HHE. 2020-05-21T09:52:29.61 0.6 undecidable manual S 282 0.3211 111 0.47 45
IV.SGTA.HNZ. 2020-05-21T09:52:28.32 0.3 undecidable manual P 331 0.5891 100 0 70
IV.CAFE.HHN. 2020-05-21T09:52:28.35 0.3 undecidable manual P 317 0.5603 101 0.52 63
IV.BULG.HHN. 2020-05-21T09:52:28.43 0.1 undecidable manual P 207 0.6088 100 -0.21 88
IV.MCEL.HHZ. 2020-05-21T09:52:28.88 0.3 undecidable manual S 171 0.2977 113 0.37 69
IV.SLCN.HHZ. 2020-05-21T09:52:27.57 0.3 undecidable manual S 200 0.2446 119 0.48 68
IV.PTRP.HHZ. 2020-05-21T09:52:27.98 0.3 undecidable manual S 112 0.2599 117 0.48 67
IV.MIGL.HHZ. 2020-05-21T09:52:27.59 0.6 undecidable manual P 91 0.5288 102 0.29 44
IX.SRN3.HHN.02 2020-05-21T09:52:27.26 0.3 undecidable manual S 239 0.2545 118 -0.1 73
IV.SNAL.HNE. 2020-05-21T09:52:27.18 0.3 undecidable manual P 307 0.5072 102 0.24 68
IV.MRVN.HHZ. 2020-05-21T09:52:27.69 0.3 undecidable manual P 38 0.5576 101 -0.1 69
IV.SCHR.EHZ. 2020-05-21T09:52:26.24 0.1 positive manual P 149 0.4901 103 -0.41 87
IV.MGR.HHZ. 2020-05-21T09:52:26.48 0.1 positive manual P 197 0.5027 102 -0.39 87
IV.MRLC.HHZ. 2020-05-21T09:52:26.56 0.6 undecidable manual S 305 0.2365 120 -0.34 47
IV.MCRV.HHN. 2020-05-21T09:52:26.08 0.3 undecidable manual P 291 0.4658 104 -0.17 69
IV.SIRI.HHZ. 2020-05-21T09:52:25.36 0.1 undecidable manual P 168 0.447 104 -0.58 83
IV.CMPR.HHZ. 2020-05-21T09:52:25.68 0.3 undecidable manual P 228 0.4506 104 -0.32 67
IX.COL3.HHE. 2020-05-21T09:52:24.25 0.6 undecidable manual P 282 0.3211 111 0.37 46
IX.STN3.HNZ.02 2020-05-21T09:52:24.79 0.6 undecidable manual S 218 0.1133 144 0.64 43
IV.PALZ.HHZ. 2020-05-21T09:52:24.38 0.1 undecidable manual P 27 0.3633 108 -0.18 95
IX.VGG3.HNZ.01 2020-05-21T09:52:24.57 0.1 positive manual P 157 0.3076 113 0.91 76
IV.VULT.HHZ. 2020-05-21T09:52:24.20 0.1 undecidable manual P 344 0.3489 109 -0.13 96
IV.SGO.HHE. 2020-05-21T09:52:23.74 0.6 undecidable manual P 260 0.3363 110 -0.39 45
IV.PTRP.HHZ. 2020-05-21T09:52:23.56 0.3 undecidable manual P 112 0.2599 117 0.63 64
IV.MCEL.HHZ. 2020-05-21T09:52:23.22 0.1 positive manual P 171 0.2977 113 -0.29 92
IV.PZUN.HNZ. 2020-05-21T09:52:23.20 0.3 undecidable manual S 61 0.0549 161 -0.13 77
IV.SLCN.HHZ. 2020-05-21T09:52:22.57 0.1 positive manual P 200 0.2446 119 -0.12 97
IX.PGN3.HHN.02 2020-05-21T09:52:22.83 0.6 undecidable manual S 140 0.0621 159 -0.58 46
IX.SRN3.HHN.02 2020-05-21T09:52:22.66 0.1 positive manual P 239 0.2545 118 -0.19 95
IV.MRLC.HHZ. 2020-05-21T09:52:22.79 0.1 undecidable manual P 305 0.2365 120 0.21 96
IV.PZUN.HNZ. 2020-05-21T09:52:20.32 0.1 undecidable manual P 61 0.0549 161 -0.2 100
IX.STN3.HNZ.02 2020-05-21T09:52:20.73 0.1 positive manual P 218 0.1133 144 -0.26 97
IX.PGN3.HHN.02 2020-05-21T09:52:20.27 0.1 negative manual P 140 0.0621 159 -0.29 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOCI.HHN. ML:2.2 0.0001415 0.42 AML other m 2020-05-21T09:52:54.93
IV.LAV9.HNN. ML:0 0.0008285 0.6 AML other m 2020-05-21T09:53:29.31
IV.LAV9.HNE. ML:0 0.0008075 0.74 AML other m 2020-05-21T09:53:30.14
IV.PZUN.HNN. ML:2.5 0.0024153605 0.1792 AML other m 2020-05-21T09:52:23.42
IV.PZUN.HHN. ML:2.5 0.0025973765 0.1792 AML other m 2020-05-21T09:52:23.42
IV.PZUN.HHE. ML:2.5 0.002502167 0.2368 AML other m 2020-05-21T09:52:24.27
IV.PZUN.HNE. ML:2.5 0.0025878405 0.5312 AML other m 2020-05-21T09:52:24.26
IV.SLCN.HHN. ML:2.1 0.00055437945 0.32 AML other m 2020-05-21T09:52:30.49
IV.SLCN.HHE. ML:2.1 0.0006116999 0.256 AML other m 2020-05-21T09:52:30.97
IV.SLCN.HNN. ML:2.1 0.00054129875 0.3008 AML other m 2020-05-21T09:52:30.50
IV.SLCN.HNE. ML:2.1 0.0005863141 0.2496 AML other m 2020-05-21T09:52:30.97
IV.MRLC.HHN. ML:1.8 0.0003042039 0.2368 AML other m 2020-05-21T09:52:28.35
IV.MRLC.HNN. ML:1.5 0.0001449439 0.2176 AML other m 2020-05-21T09:52:28.47
IV.MRLC.HNE. ML:1.3 8.5189305E-5 0.2624 AML other m 2020-05-21T09:52:28.77
IV.MRLC.HHE. ML:1.6 0.0001641454 0.2624 AML other m 2020-05-21T09:52:28.77
IV.MCEL.HHE. ML:1.9 0.0002780009 0.16 AML other m 2020-05-21T09:52:30.02
IV.MCEL.HNN. ML:1.7 0.00020622115 0.16 AML other m 2020-05-21T09:52:29.75
IV.MCEL.HHN. ML:1.8 0.00022697785 0.1792 AML other m 2020-05-21T09:52:29.75
IV.VULT.HHN. ML:1.9 0.00027132745 0.0832 AML other m 2020-05-21T09:52:31.07
IV.VULT.HNE. ML:1.9 0.00027728015 0.1408 AML other m 2020-05-21T09:52:30.52
IV.VULT.HHE. ML:2 0.0003086023 0.1408 AML other m 2020-05-21T09:52:30.59
IV.VULT.HNN. ML:1.9 0.0002476817 0.1024 AML other m 2020-05-21T09:52:30.88
IV.SIRI.HHN. ML:1.9 0.00018635155 0.1792 AML other m 2020-05-21T09:52:33.58
IV.SIRI.HNE. ML:2 0.0002137007 0.224 AML other m 2020-05-21T09:52:34.43
IV.SIRI.HNN. ML:1.9 0.0001777681 0.1856 AML other m 2020-05-21T09:52:33.59
IV.SIRI.HHE. ML:2 0.000229 1.12 AML other m 2020-05-21T09:52:34.88
IV.SCHR.EHN. ML:1.7 0.00010291849 0.16 AML other m 2020-05-21T09:52:35.26
IV.SCHR.EHE. ML:1.6 8.6475835E-5 0.1792 AML other m 2020-05-21T09:52:35.43
IV.MGR.HHN. ML:1.8 0.00014042868 0.1792 AML other m 2020-05-21T09:52:37.11
IV.MGR.HHE. ML:1.7 0.000108450505 0.2432 AML other m 2020-05-21T09:52:37.78
IV.MRVN.HHE. ML:1.8 0.000103181925 0.1408 AML other m 2020-05-21T09:52:38.00
IV.MRVN.HHN. ML:1.8 0.00012424755 0.2048 AML other m 2020-05-21T09:52:39.34
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download