Earthquake with magnitude of Md 2.2 on date 30-06-1993 and time 02:57:40 (UTC) in region 2 km NW Pollina (PA)

A magnitude Md 2.2 earthquake occured in region: 2 km NW Pollina (PA), on

  • 30-06-1993 02:57:40 (UTC)
  • 30-06-1993 04:57:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0130, 14.1380 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
Pollina PA 2 2974 2974
Tusa ME 9 2925 5899
Castelbuono PA 10 8943 14842
Cefalù PA 11 14393 29235
San Mauro Castelverde PA 12 1701 30936
Isnello PA 14 1589 32525
Pettineo ME 14 1350 33875
Motta d'Affermo ME 15 739 34614
Gratteri PA 15 963 35577
Geraci Siculo PA 17 1945 37522
Lascari PA 17 3588 41110
Santo Stefano di Camastra ME 19 4694 45804
Reitano ME 19 806 46610

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km E of Bagheria (55387 inhabitants)
58 Km N of Caltanissetta (63360 inhabitants)
69 Km E of Palermo (674435 inhabitants)
92 Km NE of Agrigento (59770 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 2.2 1993-06-30
02:57:40
38.013 14.138 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 189239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-06-30 02:57:40 ± 0.227
Latitude 38.0130 ± 0.0098
Longitude 14.1380 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 189239

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) 1178.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
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) 0.00016
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
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 189239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:57:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GIB.Z. 1993-06-30T02:57:44.88 10.0 undecidable manual SG 255 0.0888 0.17 0.2
--.TU9.Z. 1993-06-30T02:57:44.49 10.0 undecidable manual SG 130 0.0666 0.22 0.2
--.CS9.Z. 1993-06-30T02:57:44.83 10.0 undecidable manual SG 214 0.0888 0.08 0.5
--.GIB.Z. 1993-06-30T02:57:43.40 10.0 undecidable manual PG 255 0.0888 0.1 0.9
--.TU9.Z. 1993-06-30T02:57:42.72 10.0 negative manual PG 130 0.0666 0.03 2.7
--.CS9.Z. 1993-06-30T02:57:42.81 10.0 positive manual PG 214 0.0888 -0.15 1.1
--.PL9.Z. 1993-06-30T02:57:42.79 10.0 undecidable manual SG 167 0.0222 -0.19 0.1
--.PL9.Z. 1993-06-30T02:57:41.89 10.0 positive manual PG 167 0.0222 -0.05 2.5
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