Earthquake with magnitude of ML 1.9 on date 24-09-2019 and time 21:33:33 (Italy) in region 5 km E Aliminusa (PA)

A magnitude ML 1.9 earthquake occured in region: 5 km E Aliminusa (PA), on

  • 24-09-2019 19:33:33 (UTC)
  • 24-09-2019 21:33:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8620, 13.8360 at 7 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
Aliminusa PA 5 1236 1236
Sclafani Bagni PA 5 426 1662
Cerda PA 5 5330 6992
Scillato PA 6 613 7605
Montemaggiore Belsito PA 7 3365 10970
Caltavuturo PA 7 4017 14987
Sciara PA 9 2822 17809
Collesano PA 11 4054 21863
Valledolmo PA 13 3594 25457
Alia PA 14 3623 29080
Campofelice di Roccella PA 15 7537 36617
Polizzi Generosa PA 15 3407 40024
Gratteri PA 17 963 40987
Caccamo PA 17 8196 49183
Isnello PA 18 1589 50772
Lascari PA 18 3588 54360
Roccapalumba PA 18 2516 56876
Termini Imerese PA 19 26263 83139

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SE of Bagheria (55387 inhabitants)
46 Km NW of Caltanissetta (63360 inhabitants)
50 Km SE of Palermo (674435 inhabitants)
65 Km NE of Agrigento (59770 inhabitants)
96 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 1.9 2019-09-24
19:33:33
37.8622 13.8357 7 2020-02-28
16:42:19
Bollettino Sismico Italiano INGV 75587951
Reviewed
Rev100
ML 1.9 2019-09-24
19:33:33
37.8668 13.836 8 2019-09-24
19:40:22
Sala Sismica INGV-Roma 72732521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-24 19:33:33 ± 0.09
Latitude 37.8622 ± 0.0054
Longitude 13.8357 ± 0.0068
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75587951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 566
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
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 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.13040
Epicentral distance of station farthest from the epicenter (degree) 0.78511
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 75587951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-16 15:36:53

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 72732521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-24 19:40:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IACL.HHZ. 2019-09-24T19:33:49.15 0.6 undecidable manual P 31 87.1461 50 0.18 43
IV.MSFR.HHZ. 2019-09-24T19:33:46.02 0.6 undecidable manual P 74 68.7756 50 -0.13 46
IV.SOLUN.HHZ. 2019-09-24T19:33:46.97 0.6 undecidable manual S 314 36.741 101 0.35 46
IV.SCIAC.HHN. 2019-09-24T19:33:46.55 0.6 undecidable manual P 239 74.9694 50 -0.55 41
IV.RESU.HHZ. 2019-09-24T19:33:45.30 0.6 undecidable manual S 141 30.747 103 0.7 42
IV.CMDO.HHZ. 2019-09-24T19:33:45.36 3.0 undecidable manual P 44.2224 3 0
IV.PLLN.EHZ. 2019-09-24T19:33:44.51 0.6 undecidable manual S 62 30.5472 103 -0.01 50
IV.MPG.HHE. 2019-09-24T19:33:44.34 0.6 undecidable manual P 309 53.2023 50 0.6 42
IV.CORL.HHZ. 2019-09-24T19:33:42.81 0.1 undecidable manual P 275 46.7199 50 0.07 96
IV.GIB.HHZ. 2019-09-24T19:33:42.09 0.6 undecidable manual S 50 21.867 108 0.48 46
IV.CSLB.HHZ. 2019-09-24T19:33:41.35 0.3 undecidable manual S 67 21.1677 109 -0.03 76
IV.RESU.HHZ. 2019-09-24T19:33:40.06 0.3 undecidable manual P 141 30.747 103 0.1 73
IV.SOLUN.HHZ. 2019-09-24T19:33:40.85 0.6 undecidable manual P 314 36.741 101 -0.28 47
IV.ALJA.HHZ. 2019-09-24T19:33:39.26 0.3 undecidable manual S 210 14.4744 116 0.03 77
IV.PLLN.EHZ. 2019-09-24T19:33:39.44 0.1 undecidable manual P 62 30.5472 103 -0.47 91
IV.GIB.HHZ. 2019-09-24T19:33:38.32 0.1 undecidable manual P 50 21.867 108 0.08 100
IV.CSLB.HHZ. 2019-09-24T19:33:37.85 0.3 undecidable manual P 67 21.1677 109 -0.25 72
IV.ALJA.HHZ. 2019-09-24T19:33:36.64 0.3 undecidable manual P 210 14.4744 116 -0.22 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ALJA.HHE. ML:2.1 0.0015320575 0.3584 AML other m 2019-09-24T19:33:41.17
IV.ALJA.HHN. ML:2.1 0.001302794 0.1408 AML other m 2019-09-24T19:33:41.31
IV.CSLB.HHN. ML:1.5 0.00023641745000000001 0.32 AML other m 2019-09-24T19:33:41.78
IV.CSLB.HHE. ML:1.4 0.000162858 0.1792 AML other m 2019-09-24T19:33:43.26
IV.GIB.HHN. ML:2.0 0.0008021256 0.4608 AML other m 2019-09-24T19:33:43.87
IV.GIB.HHE. ML:2.0 0.0007060791 0.8192 AML other m 2019-09-24T19:33:44.62
IV.RESU.HHE. ML:1.8 0.0003333776 0.3968 AML other m 2019-09-24T19:33:48.08
IV.RESU.HHN. ML:1.9 0.0004242134 0.384 AML other m 2019-09-24T19:33:47.96
IV.CORL.HHE. ML:1.5 0.000089062345 0.4224 AML other m 2019-09-24T19:33:54.42
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