Earthquake with magnitude of Md 2.1 on date 27-06-1993 and time 20:07:46 (Italy) in region 3 km W Pollina (PA)

A magnitude Md 2.1 earthquake occured in region: 3 km W Pollina (PA), on

  • 27-06-1993 18:07:46 (UTC)
  • 27-06-1993 20:07:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9840, 14.1120 at 2 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 3 2974 2974
Castelbuono PA 6 8943 11917
Cefalù PA 10 14393 26310
Isnello PA 10 1589 27899
San Mauro Castelverde PA 10 1701 29600
Tusa ME 11 2925 32525
Gratteri PA 12 963 33488
Geraci Siculo PA 14 1945 35433
Lascari PA 15 3588 39021
Pettineo ME 16 1350 40371
Motta d'Affermo ME 17 739 41110
Collesano PA 17 4054 45164
Petralia Sottana PA 20 2821 47985
Campofelice di Roccella PA 20 7537 55522

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km E of Bagheria (55387 inhabitants)
55 Km N of Caltanissetta (63360 inhabitants)
67 Km E of Palermo (674435 inhabitants)
88 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 2.1
ML-VAX 1.5
1993-06-27
18:07:46
37.984 14.112 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 188799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-06-27 18:07:46 ± 0.168
Latitude 37.9840 ± 0.0078
Longitude 14.1120 ± 0.0057
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 188799

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) 1003.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00016
Epicentral distance of station farthest from the epicenter (degree) 0.00413
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 188799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:57:21

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 188799
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
--.MNO.Z. 1993-06-27T18:08:04.58 10.0 undecidable manual SG 96 0.4551 0.19 0.3
--.MNO.Z. 1993-06-27T18:07:57.00 10.0 undecidable manual PG 96 0.4551 0.13 0.8
--.CS9.Z. 1993-06-27T18:07:49.11 10.0 undecidable manual SG 214 0.0555 0.23 0.4
--.GIB.Z. 1993-06-27T18:07:49.68 10.0 undecidable manual SG 274 0.0666 0.38 0.1
--.GIB.Z. 1993-06-27T18:07:48.60 10.0 undecidable manual PG 274 0.0666 -0.09 1.9
--.PL9.Z. 1993-06-27T18:07:48.00 10.0 undecidable manual SG 71 0.0222 0.18 0.6
--.PL9.Z. 1993-06-27T18:07:47.00 10.0 undecidable manual PG 71 0.0222 -0.3 0.7
--.CS9.Z. 1993-06-27T18:07:47.76 10.0 positive manual PG 214 0.0555 -0.15 3.2
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