Earthquake with magnitude of ML 1.8 on date 24-08-2019 and time 14:29:58 (Italy) in region 4 km NW Caltabellotta (AG)

A magnitude ML 1.8 earthquake occured in region: 4 km NW Caltabellotta (AG), on

  • 24-08-2019 12:29:58 (UTC)
  • 24-08-2019 14:29:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.61, 13.2 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
Caltabellotta AG 4 3681 3681
Giuliana PA 8 1952 5633
Burgio AG 8 2672 8305
Sambuca di Sicilia AG 9 5877 14182
Villafranca Sicula AG 9 1410 15592
Chiusa Sclafani PA 10 2838 18430
Lucca Sicula AG 10 1805 20235
Bisacquino PA 12 4599 24834
Calamonaci AG 13 1339 26173
Contessa Entellina PA 13 1766 27939
Ribera AG 14 19232 47171
Sciacca AG 15 40928 88099
Campofiorito PA 17 1302 89401
Santa Margherita di Belice AG 18 6363 95764
Palazzo Adriano PA 18 2135 97899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NW of Agrigento (59770 inhabitants)
54 Km E of Mazara del Vallo (51718 inhabitants)
58 Km S of Palermo (674435 inhabitants)
59 Km SW of Bagheria (55387 inhabitants)
70 Km E of Marsala (83194 inhabitants)
75 Km SE of Trapani (68759 inhabitants)
77 Km W of Caltanissetta (63360 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
Rev 1000 ML 1.8 2019-08-24
12:29:58
37.61 13.2 10 2019-11-13
14:31:01
Bollettino Sismico Italiano INGV 72310031
Rev 100 ML 1.8 2019-08-24
12:29:58
37.66 13.2 6 2019-08-24
12:59:04
Sala Sismica INGV-Roma 71763581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-24 12:29:58 ± 0.16
Latitude 37.61 ± 0.02
Longitude 13.20 ± 0.01
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 72310031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2156
Semi-minor axis of confidence ellipse (meter) 1132
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
Circular confidence region, given by single value of horizontal uncertainty (meter) 2160
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
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) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.77252
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 72310031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-12 08:12:20

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 71763581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-24 12:59:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LEVAN.EHN. 2019-08-24T12:30:14.75 0.3 undecidable manual P 300 0.7725 50 1.02 49
IV.PETRA.HHZ. 2019-08-24T12:30:13.63 0.3 undecidable manual P 73 0.7563 50 0.17 65
IV.CAVT.HHE. 2019-08-24T12:30:11.30 0.6 undecidable manual S 281 0.357 50 -0.92 37
IV.MPG.HHE. 2019-08-24T12:30:10.64 0.3 undecidable manual P 13 0.5621 50 0.5 63
IV.SOLUN.HHZ. 2019-08-24T12:30:09.14 0.3 undecidable manual P 29 0.5459 50 -0.72 58
IV.ALJA.HHZ. 2019-08-24T12:30:08.41 0.6 undecidable manual P 73 0.4596 50 0.04 48
IV.MMGO.HHZ. 2019-08-24T12:30:07.50 0.6 undecidable manual S 285 0.1826 117 0.67 43
IV.CAVT.HHE. 2019-08-24T12:30:06.72 0.3 undecidable manual P 281 0.357 50 0.09 72
IV.MCT.HHE. 2019-08-24T12:30:06.52 0.3 undecidable manual P 89 0.3238 50 0.47 67
IV.MBFT.HHE. 2019-08-24T12:30:06.66 0.6 undecidable manual P 330 0.3849 50 -0.44 44
IV.SCIAC.HHZ. 2019-08-24T12:30:05.40 0.3 undecidable manual S 218 0.1241 126 0.51 69
IV.CRJA.HHZ. 2019-08-24T12:30:04.67 0.1 undecidable manual P 321 0.2428 50 0 100
IV.MMGO.HHZ. 2019-08-24T12:30:03.32 0.1 undecidable manual P 285 0.1826 117 -0.19 97
MN.CLTB.HHZ. 2019-08-24T12:30:03.10 0.3 undecidable manual S 159 0.0378 157 0.33 73
IV.SCIAC.HHZ. 2019-08-24T12:30:01.72 0.3 undecidable manual P 218 0.1241 126 -0.67 65
MN.CLTB.HHZ. 2019-08-24T12:30:00.48 0.1 negative manual P 159 0.0378 157 -0.69 87
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CLTB.HHN. ML:2.3 0.0034139515 0.4608 AML other m 2019-08-24T12:30:03.77
MN.CLTB.HHE. ML:2.1 0.0022838025 0.384 AML other m 2019-08-24T12:30:06.79
IV.SCIAC.HHN. ML:2 0.0008997623 0.2176 AML other m 2019-08-24T12:30:06.84
IV.SCIAC.HHE. ML:2 0.0009011229 0.1792 AML other m 2019-08-24T12:30:07.56
IV.CRJA.HHN. ML:1.8 0.00033843305 0.48 AML other m 2019-08-24T12:30:14.58
IV.CRJA.HHE. ML:2 0.00061637595 0.8 AML other m 2019-08-24T12:30:18.08
IV.SOLUN.HHN. ML:1.6 7.5547645E-5 0.5568 AML other m 2019-08-24T12:30:24.03
IV.ALJA.HHE. ML:1.7 0.0001273129 0.544 AML other m 2019-08-24T12:30:26.46
IV.ALJA.HHN. ML:1.6 0.0001084692 0.416 AML other m 2019-08-24T12:30:28.04
IV.SOLUN.HHE. ML:1.7 9.711861E-5 0.64 AML other m 2019-08-24T12:30:34.14
IV.PETRA.HHN. ML:1.7 6.1064205E-5 0.896 AML other m 2019-08-24T12:30:37.68
IV.PETRA.HHE. ML:1.8 7.717495E-5 0.736 AML other m 2019-08-24T12:30:42.92
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download