Earthquake with magnitude of Md 1.8 on date 15-05-1993 and time 10:48:49 (UTC) in region 4 km SE Pollina (PA)

A magnitude Md 1.8 earthquake occured in region: 4 km SE Pollina (PA), on

  • 15-05-1993 10:48:49 (UTC)
  • 15-05-1993 12:48:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9660, 14.1770 at 6 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 4 2974 2974
San Mauro Castelverde PA 6 1701 4675
Tusa ME 6 2925 7600
Castelbuono PA 9 8943 16543
Pettineo ME 10 1350 17893
Motta d'Affermo ME 11 739 18632
Geraci Siculo PA 12 1945 20577
Castel di Lucio ME 15 1294 21871
Reitano ME 15 806 22677
Isnello PA 15 1589 24266
Cefalù PA 16 14393 38659
Santo Stefano di Camastra ME 16 4694 43353
Mistretta ME 17 4791 48144
Gratteri PA 18 963 49107
Gangi PA 19 6811 55918
Petralia Sottana PA 19 2821 58739
Petralia Soprana PA 20 3360 62099

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km N of Caltanissetta (63360 inhabitants)
60 Km E of Bagheria (55387 inhabitants)
73 Km E of Palermo (674435 inhabitants)
90 Km NE of Agrigento (59770 inhabitants)
95 Km NW of Catania (314555 inhabitants)
95 Km W of Acireale (52622 inhabitants)
100 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
Md 1.8
ML-VAX 1.7
1993-05-15
10:48:49
37.966 14.177 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 185299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-05-15 10:48:49 ± 0.202
Latitude 37.9660 ± 0.0175
Longitude 14.1770 ± 0.0133
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 185299

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) 2268.1
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) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00364
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:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 185299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:53:56

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 185299
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. 1993-05-15T10:49:05.58 10.0 undecidable manual SG 94 0.3996 0.59 0
--.MNO.Z. 1993-05-15T10:48:57.90 10.0 undecidable manual PG 94 0.3996 -0.39 0.4
--.GIB.Z. 1993-05-15T10:48:54.11 10.0 undecidable manual SG 281 0.1221 -0.05 0.8
--.GIB.Z. 1993-05-15T10:48:52.70 10.0 undecidable manual PG 281 0.1221 0.04 2
--.CS9.Z. 1993-05-15T10:48:52.74 10.0 undecidable manual SG 250 0.0777 -0.3 0.4
--.PL9.Z. 1993-05-15T10:48:51.46 10.0 undecidable manual SG 314 0.0333 -0.07 0.8
--.CS9.Z. 1993-05-15T10:48:51.59 10.0 undecidable manual PG 250 0.0777 0.21 1.5
--.PL9.Z. 1993-05-15T10:48:50.56 10.0 undecidable manual PG 314 0.0333 0.05 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