Earthquake with magnitude of ML 0.3 on date 18-10-2023 and time 04:04:31 (UTC) in region 6 km W Castelsaraceno (PZ)

A magnitude ML 0.3 earthquake occured in region: 6 km W Castelsaraceno (PZ), on

  • 18-10-2023 04:04:31 (UTC)
  • 18-10-2023 06:04:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1580, 15.9190 at 7 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
Castelsaraceno PZ 6 1384 1384
Sarconi PZ 10 1404 2788
Moliterno PZ 10 4062 6850
Latronico PZ 11 4556 11406
Spinoso PZ 13 1462 12868
Lagonegro PZ 14 5584 18452
Lauria PZ 14 12919 31371
San Chirico Raparo PZ 14 1084 32455
Grumento Nova PZ 14 1700 34155
Nemoli PZ 14 1495 35650
San Martino d'Agri PZ 14 801 36451
Carbone PZ 15 638 37089
Rivello PZ 16 2767 39856
Castelluccio Superiore PZ 17 824 40680
Montemurro PZ 17 1235 41915
Castelluccio Inferiore PZ 18 2131 44046
Episcopia PZ 18 1434 45480
Trecchina PZ 19 2316 47796
Calvera PZ 19 387 48183

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km S of Potenza (67122 inhabitants)
81 Km SW of Matera (60436 inhabitants)
92 Km SW of Altamura (70396 inhabitants)
94 Km SE of Battipaglia (50786 inhabitants)
100 Km N of Cosenza (67546 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.3 2023-10-18
04:04:31
40.1578 15.9187 7 2023-10-18
05:17:39
Sala Sismica INGV-Roma 122165381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-18 04:04:31 ± 0.15
Latitude 40.1578 ± 0.0063
Longitude 15.9187 ± 0.0035
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122165381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 659
Semi-minor axis of confidence ellipse (meter) 379
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 197
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.18886
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 122165381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-18 05:17:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCEL.HHZ. 2023-10-18T04:04:39.57 0.3 undecidable manual S 332 20.9679 109 0 74
IV.MTSN.HHZ. 2023-10-18T04:04:38.90 0.3 undecidable manual S 310 18.5703 111 0.12 72
IV.SCHR.EHZ. 2023-10-18T04:04:37.36 0.6 undecidable manual S 71 14.0748 117 0 50
IV.MCEL.HHZ. 2023-10-18T04:04:36.14 0.1 undecidable manual P 332 20.9679 109 -0.17 95
IV.MTSN.HHZ. 2023-10-18T04:04:35.92 0.1 undecidable manual P 310 18.5703 111 0.07 97
IV.SCHR.EHZ. 2023-10-18T04:04:35.11 0.3 positive manual P 71 14.0748 117 0.08 73
IV.SIRI.HHZ. 2023-10-18T04:04:34.91 0.3 undecidable manual S 302 5.0949 145 -0.02 75
IV.SIRI.HHZ. 2023-10-18T04:04:33.59 0.1 undecidable manual P 302 5.0949 145 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHN. ML:0.4 0.000031828579999999994 0.1408 AML other m 2023-10-18T04:04:37.56
IV.SCHR.EHE. ML:0.4 0.00002360323 0.1184 AML other m 2023-10-18T04:04:37.46
IV.SIRI.HHE. ML:0.0 0.00003076384 0.24 AML other m 2023-10-18T04:04:37.29
IV.SIRI.HHN. ML:0.0 0.000031234224999999995 0.16 AML other m 2023-10-18T04:04:34.92
IV.MTSN.HHE. ML:0.2 0.000015790430000000003 0.1184 AML other m 2023-10-18T04:04:40.08
IV.MTSN.HHN. ML:0.1 0.0000123841765 0.1792 AML other m 2023-10-18T04:04:40.52
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