Earthquake with magnitude of ML 1.3 on date 16-05-2021 and time 16:18:15 (Italy) in region 2 km W San Chirico Raparo (PZ)

A magnitude ML 1.3 earthquake occured in region: 2 km W San Chirico Raparo (PZ), on

  • 16-05-2021 14:18:15 (UTC)
  • 16-05-2021 16:18:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.198, 16.057 at 9 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
San Chirico Raparo PZ 2 1084 1084
San Martino d'Agri PZ 5 801 1885
Castelsaraceno PZ 7 1384 3269
Carbone PZ 7 638 3907
Calvera PZ 9 387 4294
Spinoso PZ 11 1462 5756
Castronuovo di Sant'Andrea PZ 11 1067 6823
Teana PZ 11 613 7436
Armento PZ 12 631 8067
Gallicchio PZ 12 862 8929
Montemurro PZ 13 1235 10164
Latronico PZ 13 4556 14720
Roccanova PZ 13 1543 16263
Fardella PZ 13 627 16890
Missanello PZ 13 566 17456
Episcopia PZ 14 1434 18890
Sarconi PZ 15 1404 20294
Chiaromonte PZ 16 1965 22259
Moliterno PZ 17 4062 26321
Grumento Nova PZ 17 1700 28021
Francavilla in Sinni PZ 18 4215 32236
Guardia Perticara PZ 19 552 32788
Sant'Arcangelo PZ 20 6533 39321
Aliano MT 20 1008 40329

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km SE of Potenza (67122 inhabitants)
70 Km SW of Matera (60436 inhabitants)
82 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 1.3 2021-05-16
14:18:15
40.1978 16.0572 9 2021-05-16
14:26:50
Sala Sismica INGV-Roma 90167121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-16 14:18:15 ± 0.07
Latitude 40.1978 ± 0.0036
Longitude 16.0572 ± 0.0047
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90167121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 365
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.01439
Epicentral distance of station farthest from the epicenter (degree) 0.50002
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 90167121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-16 14:26:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRP.HHZ. 2021-05-16T14:18:28.07 0.6 undecidable manual S 1 0.3238 50 0.58 42
MN.CUC.HHZ. 2021-05-16T14:18:26.16 0.3 undecidable manual S 222 0.2752 50 0.1 71
IV.MIGL.HHZ. 2021-05-16T14:18:25.08 0.1 undecidable manual P 36 0.5 50 -0.19 89
IV.MCEL.HHZ. 2021-05-16T14:18:24.59 0.3 undecidable manual S 303 0.232 110 0 73
IV.MTSN.HNE. 2021-05-16T14:18:24.83 0.3 undecidable manual S 286 0.2428 109 -0.15 71
IV.SALB.HHN. 2021-05-16T14:18:23.22 0.3 undecidable manual P 145 0.3894 50 -0.14 69
IX.VGG3.HNN.01 2021-05-16T14:18:22.80 0.1 undecidable manual S 319 0.1826 115 0 98
IV.PTRP.HHZ. 2021-05-16T14:18:22.29 0.6 undecidable manual P 1 0.3238 50 0.05 47
MN.CUC.HHZ. 2021-05-16T14:18:21.41 0.3 undecidable manual P 222 0.2752 50 0 72
IV.SIRI.HHZ. 2021-05-16T14:18:21.75 0.3 undecidable manual S 264 0.1457 120 0.2 71
IV.MTSN.HNE. 2021-05-16T14:18:20.54 0.1 undecidable manual P 286 0.2428 109 -0.25 92
IV.MCEL.HHZ. 2021-05-16T14:18:20.41 0.1 positive manual P 303 0.232 110 -0.16 94
IX.VGG3.HNN.01 2021-05-16T14:18:19.52 0.6 undecidable manual P 319 0.1826 115 -0.01 49
IV.SIRI.HHZ. 2021-05-16T14:18:18.96 0.1 positive manual P 264 0.1457 120 0.15 96
IV.SCHR.EHZ. 2021-05-16T14:18:18.43 0.1 undecidable manual S 84 0.0144 170 0.07 100
IV.SCHR.EHZ. 2021-05-16T14:18:17.08 0.6 undecidable manual P 84 0.0144 170 0.11 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HHE. ML:1.3 0.0001825 0.3 AML other m 2021-05-16T14:18:22.68
IV.SIRI.HHN. ML:1.3 0.0001745 1 AML other m 2021-05-16T14:18:23.04
IV.MCEL.HHE. ML:1.4 0.000157 0.84 AML other m 2021-05-16T14:18:24.22
IV.MCEL.HHN. ML:1.2 8.345E-5 1.38 AML other m 2021-05-16T14:18:24.13
IV.MCEL.HNE. ML:1.9 0.0004755 0.36 AML other m 2021-05-16T14:18:25.39
IV.MCEL.HNN. ML:1.8 0.000349 1.26 AML other m 2021-05-16T14:18:25.25
IV.SCHR.EHE. ML:0 0.0027115781 0.064 AML other m 2021-05-16T14:18:18.48
IV.SCHR.EHN. ML:0 0.001872647 0.0832 AML other m 2021-05-16T14:18:18.50
MN.CUC.HHE. ML:0.9 3.3167215E-5 0.1984 AML other m 2021-05-16T14:18:27.79
MN.CUC.HHN. ML:0.9 4.087254E-5 0.3008 AML other m 2021-05-16T14:18:26.53
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