Earthquake with magnitude of ML 1.5 on date 19-08-2019 and time 06:31:28 (Italy) in region 5 km W Cianciana (AG)

A magnitude ML 1.5 earthquake occured in region: 5 km W Cianciana (AG), on

  • 19-08-2019 04:31:28 (UTC)
  • 19-08-2019 06:31:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.53, 13.38 at 10 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
Cianciana AG 5 3474 3474
Alessandria della Rocca AG 8 2988 6462
Calamonaci AG 8 1339 7801
Lucca Sicula AG 9 1805 9606
Cattolica Eraclea AG 10 3761 13367
Ribera AG 11 19232 32599
Villafranca Sicula AG 11 1410 34009
Bivona AG 12 3717 37726
Burgio AG 12 2672 40398
San Biagio Platani AG 13 3304 43702
Santo Stefano Quisquina AG 15 4684 48386
Sant'Angelo Muxaro AG 15 1390 49776
Montallegro AG 15 2519 52295
Caltabellotta AG 16 3681 55976
Palazzo Adriano PA 17 2135 58111
Santa Elisabetta AG 18 2474 60585
Raffadali AG 19 12856 73441
Chiusa Sclafani PA 20 2838 76279

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Agrigento (59770 inhabitants)
60 Km W of Caltanissetta (63360 inhabitants)
63 Km S of Bagheria (55387 inhabitants)
66 Km S of Palermo (674435 inhabitants)
71 Km E of Mazara del Vallo (51718 inhabitants)
89 Km E of Marsala (83194 inhabitants)
92 Km NW of Gela (75827 inhabitants)
94 Km SE of Trapani (68759 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.5 2019-08-19
04:31:28
37.53 13.38 11 2019-08-19
04:54:15
Sala Sismica INGV-Roma 71616691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 04:31:28 ± 0.1
Latitude 37.53 ± 0.00
Longitude 13.38 ± 0.00
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71616691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 315
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40829
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 3
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 71616691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 04:54:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.CORL.HHZ. 2019-08-19T04:31:43.96 3.0 undecidable manual S 0
IV.CRJA.HHZ. 2019-08-19T04:31:43.13 0.1 undecidable manual S 313 0.4083 50 0.04 95
MN.ALJA.HHZ. 2019-08-19T04:31:40.38 3.0 undecidable manual P 0
MN.MCT.HHZ. 2019-08-19T04:31:38.37 3.0 undecidable manual P 0
IV.CPTP.HHZ. 2019-08-19T04:31:37.39 3.0 positive manual P 0 0
IV.SCIAC.HHZ. 2019-08-19T04:31:37.71 0.1 undecidable manual S 268 0.2248 50 0.05 98
MN.CORL.HHZ. 2019-08-19T04:31:36.98 3.0 undecidable manual P 0
IV.CRJA.HHZ. 2019-08-19T04:31:36.88 0.1 undecidable manual P 313 0.4083 50 -0.01 95
MN.CLTB.HHZ. 2019-08-19T04:31:34.97 0.1 undecidable manual S 291 0.1439 123 -0.07 99
IV.SCIAC.HHZ. 2019-08-19T04:31:33.71 0.1 undecidable manual P 268 0.2248 50 -0.04 98
MN.CLTB.HHZ. 2019-08-19T04:31:32.27 0.1 undecidable manual P 291 0.1439 123 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CLTB.HHE. ML:1.6 0.0003457042 0.4416 AML other m 2019-08-19T04:31:34.81
MN.CLTB.HHN. ML:1.8 0.0005972337 0.4576 AML other m 2019-08-19T04:31:35.57
IV.SCIAC.HHE. ML:1.4 0.00016002795 0.1824 AML other m 2019-08-19T04:31:39.37
IV.SCIAC.HHN. ML:1.4 0.00015611505 0.2208 AML other m 2019-08-19T04:31:38.65
IV.CPTP.HHE. ML:1.3 3.6421685E-5 0.24 AML other m 2019-08-19T04:31:38.79
IV.CPTP.HHN. ML:1.3 3.4017185E-5 0.24 AML other m 2019-08-19T04:31:38.69
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