Earthquake with magnitude of ML 0.9 on date 20-04-2020 and time 00:49:37 (Italy) in region 3 km N Savoia di Lucania (PZ)

A magnitude ML 0.9 earthquake occured in region: 3 km N Savoia di Lucania (PZ), on

  • 19-04-2020 22:49:37 (UTC)
  • 20-04-2020 00:49:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6, 15.56 at 23 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
Savoia di Lucania PZ 3 1127 1127
Vietri di Potenza PZ 5 2832 3959
Sant'Angelo Le Fratte PZ 6 1429 5388
Caggiano SA 7 2765 8153
Balvano PZ 7 1830 9983
Picerno PZ 8 5985 15968
Satriano di Lucania PZ 9 2374 18342
Salvitelle SA 9 560 18902
Baragiano PZ 10 2671 21573
Tito PZ 10 7332 28905
Ricigliano SA 10 1144 30049
Polla SA 11 5279 35328
Romagnano al Monte SA 11 368 35696
Pertosa SA 11 690 36386
Auletta SA 13 2336 38722
Brienza PZ 14 4078 42800
San Gregorio Magno SA 15 4286 47086
Sant'Arsenio SA 15 2815 49901
Sasso di Castalda PZ 16 835 50736
Atena Lucana SA 16 2336 53072
Ruoti PZ 17 3579 56651
Buccino SA 17 5047 61698
San Pietro al Tanagro SA 17 1695 63393
Petina SA 18 1159 64552
Bella PZ 18 5171 69723
Muro Lucano PZ 19 5497 75220
Pignola PZ 19 6962 82182
Avigliano PZ 20 11577 93759
San Rufo SA 20 1754 95513

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Potenza (67122 inhabitants)
49 Km E of Battipaglia (50786 inhabitants)
68 Km E of Salerno (135261 inhabitants)
73 Km E of Cava de' Tirreni (53659 inhabitants)
74 Km E of Avellino (54857 inhabitants)
80 Km SW of Cerignola (58396 inhabitants)
87 Km W of Altamura (70396 inhabitants)
88 Km W of Matera (60436 inhabitants)
88 Km SE of Benevento (60091 inhabitants)
89 Km E of Scafati (50787 inhabitants)
92 Km E of Castellammare di Stabia (66466 inhabitants)
93 Km SW of Andria (100440 inhabitants)
96 Km S 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 0.9 2020-04-19
22:49:37
40.6 15.56 23 2020-04-19
22:56:42
Sala Sismica INGV-Roma 78400261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-19 22:49:37 ± 0.27
Latitude 40.60 ± 0.01
Longitude 15.56 ± 0.02
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78400261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1492
Semi-minor axis of confidence ellipse (meter) 986
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 1490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.09533
Epicentral distance of station farthest from the epicenter (degree) 0.47574
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.5
Num. used stations 8
Type of magnitude ML
Reference to an origin 78400261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-19 22:56:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MCEL.HHZ. 2020-04-19T22:49:51.56 0.3 undecidable manual S 146 0.3283 115 0.68 86
IV.VULT.HHZ. 2020-04-19T22:49:51.64 0.6 undecidable manual S 6 0.3588 113 -0.09 66
IV.MRLC.HHZ. 2020-04-19T22:49:47.41 0.3 undecidable manual S 340 0.1682 136 0.43 93
IV.SIRI.HHZ. 2020-04-19T22:49:47.74 0.6 undecidable manual P 151 0.4757 106 -0.07 63
IV.SLCN.HHZ. 2020-04-19T22:49:47.96 0.6 undecidable manual S 166 0.2149 128 -0.05 67
IV.PALZ.HHZ. 2020-04-19T22:49:47.15 0.6 undecidable manual P 41 0.4578 107 -0.37 60
IV.PZUN.HHZ. 2020-04-19T22:49:47.44 0.6 undecidable manual S 75 0.1907 132 -0.03 68
IV.MCEL.HHZ. 2020-04-19T22:49:45.50 1.0 positive manual P 146 0.3283 115 0.07 33
IV.VULT.HHZ. 2020-04-19T22:49:45.74 1.0 positive manual P 6 0.3588 113 -0.18 32
IX.STN3.HNZ.01 2020-04-19T22:49:45.05 0.3 undecidable manual S 135 0.0953 152 -0.65 89
IV.PZUN.HHZ. 2020-04-19T22:49:43.52 0.6 positive manual P 75 0.1907 132 0.06 68
IV.MRLC.HHZ. 2020-04-19T22:49:43.40 0.3 undecidable manual P 340 0.1682 136 0.22 98
IV.SLCN.HHZ. 2020-04-19T22:49:43.71 0.3 positive manual P 166 0.2149 128 -0.06 100
IX.STN3.HNZ.01 2020-04-19T22:49:42.09 0.6 undecidable manual P 135 0.0953 152 -0.35 65
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.STN3.HHN.02 ML:2.6 0.00288 1.6 AML other m 2020-04-19T22:49:44.17
IX.STN3.HHE.02 ML:2.6 0.002835 0.22 AML other m 2020-04-19T22:49:45.18
IV.PZUN.HHN. ML:1 4.475E-5 0.18 AML other m 2020-04-19T22:49:49.41
IV.MRLC.HHE. ML:0.7 2.375E-5 1.52 AML other m 2020-04-19T22:49:49.87
IV.PZUN.HHE. ML:1 4.295E-5 1.78 AML other m 2020-04-19T22:49:50.89
IV.MRLC.HHN. ML:0.8 3.145E-5 1.5 AML other m 2020-04-19T22:49:50.97
IV.MCEL.HHN. ML:0.7 1.71E-5 1.06 AML other m 2020-04-19T22:49:52.66
IV.MCEL.HHE. ML:0.7 1.695E-5 0.72 AML other m 2020-04-19T22:49:55.23
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download