Earthquake with magnitude of ML 1.3 on date 13-09-2021 and time 14:36:12 (Italy) in region 5 km S Sclafani Bagni (PA)

A magnitude ML 1.3 earthquake occured in region: 5 km S Sclafani Bagni (PA), on

  • 13-09-2021 12:36:12 (UTC)
  • 13-09-2021 14:36:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7820, 13.8630 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Sclafani Bagni PA 5 426 426
Valledolmo PA 5 3594 4020
Caltavuturo PA 5 4017 8037
Scillato PA 9 613 8650
Montemaggiore Belsito PA 12 3365 12015
Vallelunga Pratameno CL 12 3461 15476
Aliminusa PA 12 1236 16712
Polizzi Generosa PA 13 3407 20119
Alia PA 13 3623 23742
Villalba CL 14 1633 25375
Cerda PA 14 5330 30705
Castellana Sicula PA 16 3411 34116
Collesano PA 17 4054 38170
Sciara PA 17 2822 40992
Resuttano CL 19 2038 43030
Blufi PA 19 1029 44059
Roccapalumba PA 20 2516 46575

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Caltanissetta (63360 inhabitants)
45 Km SE of Bagheria (55387 inhabitants)
58 Km SE of Palermo (674435 inhabitants)
58 Km NE of Agrigento (59770 inhabitants)
87 Km NW of Gela (75827 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
Bulletin
Rev1000
ML 1.3 2021-09-13
12:36:12
37.7817 13.8633 10 2022-03-30
13:04:39
Bollettino Sismico Italiano INGV 101554121
Reviewed
Rev100
ML 1.4 2021-09-13
12:36:11
37.8273 13.7593 17 2021-09-13
12:45:04
Sala Sismica INGV-Roma 95385751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-13 12:36:12 ± 0.2
Latitude 37.7817 ± 0.0099
Longitude 13.8633 ± 0.0102
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101554121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 924
Semi-minor axis of confidence ellipse (meter) 740
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 339
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 101554121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-28 18:05:24

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95385751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-13 12:45:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MARS.HHZ. 2021-09-13T12:36:24.50 3.0 positive manual P 0.02 0
IV.SCIAR.HHZ. 2021-09-13T12:36:21.80 0.6 undecidable manual S 330 20.2686 117 1.01 39
IV.PETRA.HHZ. 2021-09-13T12:36:21.73 0.6 undecidable manual S 75 22.755 114 0.16 52
IV.CSLB.HHZ. 2021-09-13T12:36:21.86 0.6 undecidable manual S 45 24.2535 113 -0.19 52
IV.RESU.HHZ. 2021-09-13T12:36:21.74 0.6 undecidable manual S 131 22.6551 114 0.21 51
IV.PLLN.EHN. 2021-09-13T12:36:19.70 0.3 undecidable manual P 46 33.8439 50 0.02 79
IV.RESU.HHZ. 2021-09-13T12:36:18.52 0.3 undecidable manual P 131 22.6551 114 0.63 69
IV.GIB.HHE. 2021-09-13T12:36:18.67 0.3 undecidable manual P 32 27.1506 50 0.03 80
IV.SCIAR.HHZ. 2021-09-13T12:36:17.60 0.3 undecidable manual P 330 20.2686 117 0.14 79
IV.PETRA.HHZ. 2021-09-13T12:36:17.66 0.3 undecidable manual P 75 22.755 114 -0.26 76
IV.ALJA.HHZ. 2021-09-13T12:36:17.90 0.6 undecidable manual S 249 10.2786 135 -0.04 54
IV.CSLB.HHZ. 2021-09-13T12:36:17.79 0.1 undecidable manual P 45 24.2535 113 -0.4 99
IV.ALJA.HHZ. 2021-09-13T12:36:15.37 0.1 undecidable manual P 249 10.2786 135 -0.45 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ALJA.HHE. ML:1.5 0.0003615 0.58 AML other m 2021-09-13T12:36:18.35
IV.ALJA.HHN. ML:1.2 0.000216 0.18 AML other m 2021-09-13T12:36:19.18
IV.SCIAR.HHE. ML:1.1 0.0000887 1.36 AML other m 2021-09-13T12:36:20.17
IV.SCIAR.HHN. ML:1.2 0.00012705 0.3 AML other m 2021-09-13T12:36:22.55
IV.RESU.HHN. ML:1.5 0.000195 0.52 AML other m 2021-09-13T12:36:24.59
IV.PETRA.HHE. ML:1.2 0.00011649999999999999 1.44 AML other m 2021-09-13T12:36:24.76
IV.PETRA.HHN. ML:1.0 0.00006795000000000001 1.48 AML other m 2021-09-13T12:36:25.80
IV.RESU.HHE. ML:1.2 0.000107 0.66 AML other m 2021-09-13T12:36:28.83
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