Earthquake with magnitude of ML 0.8 on date 08-07-2018 and time 06:29:29 (UTC) in region 3 km NW Polizzi Generosa (PA)

A magnitude ML 0.8 earthquake occured in region: 3 km NW Polizzi Generosa (PA), on

  • 08-07-2018 06:29:29 (UTC)
  • 08-07-2018 08:29:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8350, 13.9830 at 9 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
Polizzi Generosa PA 3 3407 3407
Scillato PA 7 613 4020
Castellana Sicula PA 8 3411 7431
Caltavuturo PA 8 4017 11448
Petralia Sottana PA 10 2821 14269
Collesano PA 10 4054 18323
Sclafani Bagni PA 11 426 18749
Petralia Soprana PA 12 3360 22109
Blufi PA 12 1029 23138
Isnello PA 12 1589 24727
Bompietro PA 14 1401 26128
Castelbuono PA 15 8943 35071
Gratteri PA 15 963 36034
Geraci Siculo PA 15 1945 37979
Cerda PA 17 5330 43309
Valledolmo PA 17 3594 46903
Resuttano CL 18 2038 48941
Aliminusa PA 18 1236 50177
Lascari PA 19 3588 53765
Montemaggiore Belsito PA 19 3365 57130
Campofelice di Roccella PA 20 7537 64667
Alimena PA 20 2032 66699

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Caltanissetta (63360 inhabitants)
50 Km SE of Bagheria (55387 inhabitants)
63 Km SE of Palermo (674435 inhabitants)
68 Km NE of Agrigento (59770 inhabitants)
89 Km N 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 0.8 2018-07-08
06:29:29
37.8353 13.9832 9 2019-04-24
14:51:14
Bollettino Sismico Italiano INGV 66937441
Reviewed
Rev100
ML 0.8 2018-07-08
06:29:29
37.8433 14.0007 14 2018-07-08
06:38:41
Sala Sismica INGV-Roma 58580291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-08 06:29:29 ± 0.27
Latitude 37.8353 ± 0.0054
Longitude 13.9832 ± 0.0080
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66937441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 699
Semi-minor axis of confidence ellipse (meter) 377
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.20055
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 58580291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-08 06:38:41

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 66937441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-26 15:14:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2018-07-08T06:29:37.98 0.6 undecidable manual S 245 22.2555 111 -0.3 46
IV.GIB.HHZ. 2018-07-08T06:29:36.63 0.6 undecidable manual S 12 17.5713 116 -0.16 48
IV.CSLB.HHZ. 2018-07-08T06:29:35.66 0.6 undecidable manual S 30 13.0758 124 0.22 48
IV.ALJA.HHZ. 2018-07-08T06:29:35.19 0.3 undecidable manual P 245 22.2555 111 0.42 68
IV.PETRA.HHZ. 2018-07-08T06:29:35.09 0.6 undecidable manual S 91 11.5773 127 0.09 49
IV.RESU.HHZ. 2018-07-08T06:29:34.60 0.1 undecidable manual P 163 21.867 112 -0.1 96
IV.CSLB.HHZ. 2018-07-08T06:29:33.01 0.1 undecidable manual P 30 13.0758 124 -0.12 97
IV.GIB.HHZ. 2018-07-08T06:29:33.92 0.1 undecidable manual P 12 17.5713 116 0 99
IV.PETRA.HHZ. 2018-07-08T06:29:32.88 0.1 undecidable manual P 91 11.5773 127 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHN. ML:0.9 0.00010250000000000001 0.72 AML other m 2018-07-08T06:29:36.11
IV.PETRA.HHE. ML:1.1 0.0001535 0.68 AML other m 2018-07-08T06:29:38.35
IV.CSLB.HHN. ML:0.5 0.0000344 0.2 AML other m 2018-07-08T06:29:38.25
IV.CSLB.HHE. ML:0.5 0.0000344 0.64 AML other m 2018-07-08T06:29:38.64
IV.RESU.HHN. ML:0.9 0.000050799999999999995 1.2 AML other m 2018-07-08T06:29:40.77
IV.RESU.HHE. ML:0.8 0.00004245 1.5 AML other m 2018-07-08T06:29:41.09
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