Earthquake with magnitude of ML 1.0 on date 12-09-2021 and time 05:48:17 (Italy) in region 4 km SW Pignola (PZ)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Pignola (PZ), on

  • 12-09-2021 03:48:17 (UTC)
  • 12-09-2021 05:48:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.549, 15.755 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pignola PZ 4 6962 6962
Abriola PZ 7 1531 8493
Tito PZ 8 7332 15825
Sasso di Castalda PZ 9 835 16660
Satriano di Lucania PZ 10 2374 19034
Potenza PZ 11 67122 86156
Calvello PZ 11 1948 88104
Brienza PZ 13 4078 92182
Picerno PZ 14 5985 98167
Marsico Nuovo PZ 14 4098 102265
Anzi PZ 15 1696 103961
Sant'Angelo Le Fratte PZ 17 1429 105390
Brindisi Montagna PZ 17 908 106298
Savoia di Lucania PZ 17 1127 107425
Paterno PZ 19 3368 110793
Vaglio Basilicata PZ 19 2047 112840
Atena Lucana SA 20 2336 115176
Baragiano PZ 20 2671 117847
Ruoti PZ 20 3579 121426

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SW of Potenza (67122 inhabitants)
65 Km E of Battipaglia (50786 inhabitants)
73 Km W of Matera (60436 inhabitants)
74 Km W of Altamura (70396 inhabitants)
81 Km S of Cerignola (58396 inhabitants)
85 Km E of Salerno (135261 inhabitants)
88 Km SW of Andria (100440 inhabitants)
90 Km E of Cava de' Tirreni (53659 inhabitants)
91 Km E of Avellino (54857 inhabitants)
96 Km SW of Barletta (94814 inhabitants)
98 Km SW of Trani (56217 inhabitants)
100 Km SW of Bisceglie (55422 inhabitants)
Recent and historical seismicity
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
Reviewed
Rev100
ML 1.0 2021-09-12
03:48:17
40.549 15.7548 11 2021-09-12
04:01:02
Sala Sismica INGV-Roma 95329081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-12 03:48:17 ± 0.21
Latitude 40.5490 ± 0.0108
Longitude 15.7548 ± 0.0142
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95329081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1228
Semi-minor axis of confidence ellipse (meter) 789
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 323
Circular confidence region, given by single value of horizontal uncertainty (meter) 1230
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.28239
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 95329081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-12 04:01:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IX.SRN3.HHZ.02 2021-09-12T03:48:26.64 0.6 undecidable manual S 255 0.2338 50 -0.15 48
IV.PZUN.HHZ. 2021-09-12T03:48:23.61 0.6 undecidable manual S 22 0.1043 134 0.68 42
IV.MTSN.HHZ. 2021-09-12T03:48:23.70 0.3 undecidable manual P 181 0.2824 50 0.06 71
IV.SLCN.HHZ. 2021-09-12T03:48:22.13 0.1 negative manual P 210 0.1844 50 0.17 94
IX.STN3.HNZ.01 2021-09-12T03:48:22.50 0.6 undecidable manual S 256 0.0809 141 0.19 49
IX.SRN3.HHZ.02 2021-09-12T03:48:22.32 0.6 negative manual P 255 0.2338 50 -0.5 44
IX.STN3.HNZ.01 2021-09-12T03:48:20.27 0.6 undecidable manual P 256 0.0809 141 0.04 50
IV.PZUN.HHZ. 2021-09-12T03:48:20.42 0.6 undecidable manual P 22 0.1043 134 -0.17 49
IX.PGN3.HHZ.02 2021-09-12T03:48:20.71 0.6 undecidable manual S 54 0.0396 158 -0.79 41
IX.PGN3.HHZ.02 2021-09-12T03:48:19.83 0.1 negative manual P 54 0.0396 158 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.PGN3.HHE.02 ML:0.9 0.0001305 0.44 AML other m 2021-09-12T03:48:22.30
IX.PGN3.HHN.02 ML:0.9 0.000136 0.64 AML other m 2021-09-12T03:48:23.01
IV.PZUN.HHE. ML:1.1 0.0001322 0.7 AML other m 2021-09-12T03:48:24.24
IV.PZUN.HHN. ML:1.1 0.000133 0.76 AML other m 2021-09-12T03:48:25.44
IX.SRN3.HHE.02 ML:0.9 4.205E-5 1.3 AML other m 2021-09-12T03:48:26.86
IX.SRN3.HHN.02 ML:1.1 6.705E-5 1.58 AML other m 2021-09-12T03:48:27.06
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