Earthquake with magnitude of Md 2.1 on date 16-08-1994 and time 07:05:02 (Italy) in region 3 km W Sciara (PA)

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

  • 16-08-1994 05:05:02 (UTC)
  • 16-08-1994 07:05:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9150, 13.7310 at 5 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
Sciara PA 3 2822 2822
Caccamo PA 6 8196 11018
Aliminusa PA 7 1236 12254
Cerda PA 8 5330 17584
Montemaggiore Belsito PA 8 3365 20949
Termini Imerese PA 9 26263 47212
Trabia PA 11 10505 57717
Ventimiglia di Sicilia PA 14 1953 59670
Roccapalumba PA 14 2516 62186
Ciminna PA 15 3780 65966
Sclafani Bagni PA 15 426 66392
Alia PA 15 3623 70015
Campofelice di Roccella PA 16 7537 77552
Scillato PA 17 613 78165
Vicari PA 17 2901 81066
Baucina PA 17 2008 83074
Caltavuturo PA 18 4017 87091
Collesano PA 18 4054 91145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SE of Bagheria (55387 inhabitants)
39 Km SE of Palermo (674435 inhabitants)
55 Km NW of Caltanissetta (63360 inhabitants)
68 Km N 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
1994-08-16
05:05:02
37.915 13.731 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 215009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-08-16 05:05:02 ± 0.931
Latitude 37.9150 ± 0.0592
Longitude 13.7310 ± 0.0613
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 215009

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) 8500.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00575
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 3
Type of magnitude Md
Reference to an origin 215009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:22:46

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 215009
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
--.FAI.Z. 1994-08-16T05:05:16.70 10.0 undecidable manual PG 184 0.6327 0.38 0.9
--.PL9.Z. 1994-08-16T05:05:16.31 10.0 undecidable manual SG 76 0.333 1.25 0.1
--.CS9.Z. 1994-08-16T05:05:12.23 10.0 undecidable manual SG 85 0.2553 -0.36 0.5
--.GIB.Z. 1994-08-16T05:05:12.26 10.0 undecidable manual SG 72 0.2442 0.61 0.4
--.PL9.Z. 1994-08-16T05:05:10.43 10.0 undecidable manual PG 76 0.333 0.85 0.7
--.CS9.Z. 1994-08-16T05:05:07.18 10.0 positive manual PG 85 0.2553 -0.97 1.2
--.GIB.Z. 1994-08-16T05:05:07.59 10.0 positive manual PG 72 0.2442 -0.02 3.1
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