Earthquake with magnitude of ML 0.9 on date 25-05-2021 and time 07:07:49 (Italy) in region 7 km N Lagonegro (PZ)

A magnitude ML 0.9 earthquake occured in region: 7 km N Lagonegro (PZ), on

  • 25-05-2021 05:07:49 (UTC)
  • 25-05-2021 07:07:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.182, 15.776 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
Lagonegro PZ 7 5584 5584
Casalbuono SA 9 1194 6778
Moliterno PZ 11 4062 10840
Rivello PZ 12 2767 13607
Sarconi PZ 12 1404 15011
Montesano sulla Marcellana SA 12 6704 21715
Nemoli PZ 13 1495 23210
Casaletto Spartano SA 14 1420 24630
Torraca SA 14 1263 25893
Grumento Nova PZ 15 1700 27593
Tortorella SA 15 523 28116
Tramutola PZ 16 3089 31205
Lauria PZ 16 12919 44124
Buonabitacolo SA 16 2549 46673
Sapri SA 17 6770 53443
Trecchina PZ 17 2316 55759
Castelsaraceno PZ 19 1384 57143
Spinoso PZ 19 1462 58605
Vibonati SA 19 3293 61898
Morigerati SA 19 665 62563
Caselle in Pittari SA 20 1956 64519

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km S of Potenza (67122 inhabitants)
82 Km SE of Battipaglia (50786 inhabitants)
88 Km SW of Matera (60436 inhabitants)
97 Km SW of Altamura (70396 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 0.9 2021-05-25
05:07:49
40.1823 15.7757 11 2021-05-25
05:41:27
Sala Sismica INGV-Roma 90473271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-25 05:07:49 ± 0.08
Latitude 40.1823 ± 0.0045
Longitude 15.7757 ± 0.0059
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90473271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 500
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07015
Epicentral distance of station farthest from the epicenter (degree) 0.23472
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 90473271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-25 05:41:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SCHR.EHZ. 2021-05-25T05:07:58.39 0.3 undecidable manual S 86 0.2302 90 -0.39 90
IV.SLCN.HNZ. 2021-05-25T05:07:58.89 0.6 undecidable manual S 332 0.2347 90 -0.03 65
MN.CUC.HHZ. 2021-05-25T05:07:57.61 0.3 undecidable manual S 171 0.1907 90 -0.02 99
IV.MCEL.HHZ. 2021-05-25T05:07:56.11 0.3 undecidable manual S 8 0.1439 90 -0.13 98
IV.MGR.HHZ. 2021-05-25T05:07:56.82 0.3 undecidable manual S 255 0.1754 90 -0.35 93
IV.SLCN.HNZ. 2021-05-25T05:07:55.37 0.6 undecidable manual P 332 0.2347 90 0.43 61
IV.SIRI.HHZ. 2021-05-25T05:07:54.50 0.3 undecidable manual S 90 0.0701 132 0.28 97
MN.CUC.HHZ. 2021-05-25T05:07:54.05 0.3 positive manual P 171 0.1907 90 -0.15 96
IV.MTSN.HNZ. 2021-05-25T05:07:54.51 0.3 undecidable manual S 348 0.0863 122 -0.08 100
IV.SCHR.EHZ. 2021-05-25T05:07:54.70 0.6 undecidable manual P 86 0.2302 90 -0.17 63
IV.MGR.HHZ. 2021-05-25T05:07:53.97 0.3 undecidable manual P 255 0.1754 90 0.04 100
IV.MCEL.HHZ. 2021-05-25T05:07:53.67 0.3 positive manual P 8 0.1439 90 0.27 96
IV.SIRI.HHZ. 2021-05-25T05:07:52.37 0.3 negative manual P 90 0.0701 132 0.14 100
IV.MTSN.HNZ. 2021-05-25T05:07:52.65 0.3 undecidable manual P 348 0.0863 122 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HHE. ML:1 0.000134 0.22 AML other m 2021-05-25T05:07:54.63
IV.SIRI.HHN. ML:0.8 8.573743E-5 0.1984 AML other m 2021-05-25T05:07:55.96
IV.MCEL.HNE. ML:1.4 0.00020448255 0.4192 AML other m 2021-05-25T05:07:57.05
IV.MCEL.HNN. ML:1.3 0.0001615324 0.2368 AML other m 2021-05-25T05:07:57.75
IV.SIRI.HNE. ML:1 0.000127318345 0.2208 AML other m 2021-05-25T05:07:54.63
IV.SIRI.HNN. ML:0.8 8.489408E-5 0.2208 AML other m 2021-05-25T05:07:55.86
IV.MCEL.HHE. ML:0.8 5.609265E-5 0.1984 AML other m 2021-05-25T05:07:56.54
IV.MCEL.HHN. ML:0.7 4.55439E-5 0.1024 AML other m 2021-05-25T05:07:56.83
IV.MGR.HHE. ML:0.7 3.679208E-5 0.2816 AML other m 2021-05-25T05:07:58.87
IV.MGR.HHN. ML:0.7 3.378352E-5 0.1792 AML other m 2021-05-25T05:07:58.25
IV.MGR.HNE. ML:1.1 8.4586865E-5 0.5696 AML other m 2021-05-25T05:08:02.46
IV.MGR.HNN. ML:1.3 0.000138295355 0.5696 AML other m 2021-05-25T05:08:00.45
MN.CUC.HHE. ML:0.8 3.769746E-5 0.2016 AML other m 2021-05-25T05:07:57.88
MN.CUC.HHN. ML:0.6 2.2572497E-5 0.3008 AML other m 2021-05-25T05:07:57.63
MN.CUC.HNE. ML:1.1 8.017479E-5 0.6976 AML other m 2021-05-25T05:08:04.06
MN.CUC.HNN. ML:1.1 8.568904E-5 1.28 AML other m 2021-05-25T05:08:03.95
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