Earthquake with magnitude of Md 1.9 on date 17-07-1993 and time 04:06:18 (Italy) in region 1 km NW Pollina (PA)

A magnitude Md 1.9 earthquake occured in region: 1 km NW Pollina (PA), on

  • 17-07-1993 02:06:18 (UTC)
  • 17-07-1993 04:06:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0000, 14.1440 at 4 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
Pollina PA 1 2974 2974
Tusa ME 9 2925 5899
Castelbuono PA 9 8943 14842
San Mauro Castelverde PA 10 1701 16543
Cefalù PA 12 14393 30936
Isnello PA 14 1589 32525
Pettineo ME 14 1350 33875
Motta d'Affermo ME 14 739 34614
Gratteri PA 15 963 35577
Geraci Siculo PA 16 1945 37522
Lascari PA 18 3588 41110
Reitano ME 18 806 41916
Santo Stefano di Camastra ME 18 4694 46610
Castel di Lucio ME 19 1294 47904

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km E of Bagheria (55387 inhabitants)
57 Km N of Caltanissetta (63360 inhabitants)
70 Km E of Palermo (674435 inhabitants)
91 Km NE of Agrigento (59770 inhabitants)
100 Km W of Acireale (52622 inhabitants)
100 Km NW of Catania (314555 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
Md 1.9
ML-VAX 1.6
1993-07-17
02:06:18
38 14.144 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 191149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-07-17 02:06:18 ± 0.153
Latitude 38.0000 ± 0.0084
Longitude 14.1440 ± 0.0050
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 191149

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1033.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.00081
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 191149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:59:32

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 191149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CS9.Z. 1993-07-17T02:06:22.40 10.0 undecidable manual SG 222 0.0777 -0.02 0.7
--.GIB.Z. 1993-07-17T02:06:22.65 10.0 undecidable manual SG 263 0.0888 0.29 0
--.TU9.Z. 1993-07-17T02:06:21.67 10.0 undecidable manual SG 124 0.0666 0.3 0
--.GIB.Z. 1993-07-17T02:06:20.73 10.0 undecidable manual PG 263 0.0888 0 1.6
--.TU9.Z. 1993-07-17T02:06:20.11 10.0 undecidable manual PG 124 0.0666 -0.05 1.8
--.CS9.Z. 1993-07-17T02:06:20.46 10.0 undecidable manual PG 222 0.0777 -0.1 1.3
--.PL9.Z. 1993-07-17T02:06:19.30 10.0 undecidable manual PG 182 -0.03 2
--.PL9.Z. 1993-07-17T02:06:19.82 10.0 undecidable manual SG 182 -0.11 0.5
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