Earthquake with magnitude of ML 0.5 on date 12-07-2021 and time 02:50:41 (Italy) in region 4 km SW Brienza (PZ)

A magnitude ML 0.5 earthquake occured in region: 4 km SW Brienza (PZ), on

  • 12-07-2021 00:50:41 (UTC)
  • 12-07-2021 02:50:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.448, 15.616 at 10 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
Brienza PZ 4 4078 4078
Atena Lucana SA 5 2336 6414
Sala Consilina SA 5 12664 19078
Sasso di Castalda PZ 7 835 19913
Teggiano SA 10 7976 27889
Marsico Nuovo PZ 11 4098 31987
San Pietro al Tanagro SA 11 1695 33682
Satriano di Lucania PZ 11 2374 36056
Sant'Arsenio SA 11 2815 38871
Sant'Angelo Le Fratte PZ 12 1429 40300
Sassano SA 12 5013 45313
Padula SA 12 5368 50681
Paterno PZ 13 3368 54049
Polla SA 13 5279 59328
San Rufo SA 13 1754 61082
Monte San Giacomo SA 13 1572 62654
Savoia di Lucania PZ 15 1127 63781
Tito PZ 16 7332 71113
Caggiano SA 17 2765 73878
Pertosa SA 18 690 74568
Abriola PZ 18 1531 76099
Vietri di Potenza PZ 19 2832 78931
Marsicovetere PZ 20 5546 84477
Buonabitacolo SA 20 2549 87026
Corleto Monforte SA 20 592 87618
Calvello PZ 20 1948 89566

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Potenza (67122 inhabitants)
56 Km E of Battipaglia (50786 inhabitants)
77 Km E of Salerno (135261 inhabitants)
82 Km E of Cava de' Tirreni (53659 inhabitants)
86 Km SE of Avellino (54857 inhabitants)
87 Km W of Matera (60436 inhabitants)
90 Km W of Altamura (70396 inhabitants)
94 Km S of Cerignola (58396 inhabitants)
98 Km E of Scafati (50787 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 0.5 2021-07-12
00:50:41
40.4478 15.6155 10 2021-07-12
01:03:55
Sala Sismica INGV-Roma 92643661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-12 00:50:41 ± 0.16
Latitude 40.4478 ± 0.0072
Longitude 15.6155 ± 0.0130
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92643661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1055
Semi-minor axis of confidence ellipse (meter) 636
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 12
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
Epicentral distance of station farthest from the epicenter (degree) 0.24012
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 92643661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-12 01:03:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2021-07-12T00:52:21.68 3.0 negative manual Pg 14.23 0
IV.PP3.EHZ. 2021-07-12T00:52:11.41 3.0 undecidable manual Sg 0.67 0
GU.GRAM.HHZ. 2021-07-12T00:52:05.63 3.0 negative manual Pn 4.18 0
IV.CAGR.HHZ. 2021-07-12T00:52:04.70 3.0 undecidable manual Sn 13.79 0
IV.CSP1.EHZ. 2021-07-12T00:51:29.37 3.0 positive manual Pg 4.02 0
IV.MMO1.EHZ. 2021-07-12T00:51:28.79 3.0 undecidable manual Pg 6.19 0
IV.FDMO.HHZ. 2021-07-12T00:51:28.49 3.0 undecidable manual Pg 2.85 0
IV.MC2.EHZ. 2021-07-12T00:51:27.80 3.0 negative manual Pg 4.09 0
AC.VLO.HHZ. 2021-07-12T00:51:26.51 3.0 undecidable manual Sn -0.12 0
IV.CAGR.HHZ. 2021-07-12T00:51:16.50 3.0 undecidable manual Pn 1.96 0
CR.STON.BHZ. 2021-07-12T00:51:11.16 3.0 negative manual Pg 1.66 0
IV.CDRU.HHZ. 2021-07-12T00:50:51.79 3.0 undecidable manual S 280 0.2401 50 0.73 0
IV.MTSN.HHZ. 2021-07-12T00:50:50.64 0.3 undecidable manual S 150 0.2086 114 0.52 68
IV.MCEL.HHZ. 2021-07-12T00:50:49.83 0.3 undecidable manual S 131 0.188 116 0.45 70
IV.CDRU.HHZ. 2021-07-12T00:50:47.02 0.1 undecidable manual P 280 0.2401 50 0.08 99
IV.MTSN.HHZ. 2021-07-12T00:50:46.14 0.1 undecidable manual P 150 0.2086 114 -0.26 96
IX.STN3.HNE.01 2021-07-12T00:50:46.61 0.3 undecidable manual S 18 0.0863 137 0.4 72
IV.MCEL.HHZ. 2021-07-12T00:50:45.82 0.1 undecidable manual P 131 0.188 116 -0.16 99
IX.SRN3.HHZ.02 2021-07-12T00:50:45.08 0.3 undecidable manual P 288 0.1259 126 0.28 73
IX.PGN3.HHZ.02 2021-07-12T00:50:45.83 0.3 undecidable manual P 48 0.1853 117 -0.1 75
IV.SLCN.HHZ. 2021-07-12T00:50:45.25 0.3 undecidable manual S 167 0.0594 147 -0.31 74
IV.SLCN.HHZ. 2021-07-12T00:50:43.66 0.3 negative manual P 167 0.0594 147 -0.11 77
IX.STN3.HNE.01 2021-07-12T00:50:43.95 0.1 undecidable manual P 18 0.0863 137 -0.19 100
IX.MRN3.HNZ.01 2021-07-12T00:50:43.66 0.6 undecidable manual P 104 0.0899 136 -0.53 46
IV.CRAC.EHZ. 2021-07-12T00:50:36.57 3.0 undecidable manual P 0.94 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SLCN.HHE. ML:0.9 0.0001179 0.2 AML other m 2021-07-12T00:50:47.46
IX.SRN3.HHN.02 ML:0.5 3.56E-5 0.94 AML other m 2021-07-12T00:50:50.97
IX.SRN3.HHE.02 ML:0.4 2.618588E-5 0.256 AML other m 2021-07-12T00:50:49.70
IV.SLCN.HHN. ML:0.6 5.69E-5 0.26 AML other m 2021-07-12T00:50:51.06
IV.MCEL.HHN. ML:0 1.48550175E-5 0.2 AML other m 2021-07-12T00:50:52.28
IX.PGN3.HHN.02 ML:0.6 2.71E-5 1.32 AML other m 2021-07-12T00:50:51.12
IX.PGN3.HHE.02 ML:0.6 2.49E-5 0.74 AML other m 2021-07-12T00:50:52.65
IV.MCEL.HHE. ML:0 1.8496985E-5 0.34 AML other m 2021-07-12T00:50:52.49
IV.MTSN.HHE. ML:0 2.2124495E-5 0.32 AML other m 2021-07-12T00:50:54.45
IV.MTSN.HHN. ML:0 1.90843605E-5 0.46 AML other m 2021-07-12T00:50:53.07
IV.CDRU.HHE. ML:0 2.63629425E-6 0.16 AML other m 2021-07-12T00:50:52.99
IV.CDRU.HHN. ML:0 3.1743485E-6 0.12 AML other m 2021-07-12T00:50:52.82
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