Earthquake with magnitude of Md 2.5 on date 28-04-1994 and time 23:23:26 (Italy) in region 2 km S Cannara (PG)

A magnitude Md 2.5 earthquake occured in region: 2 km S Cannara (PG), on

  • 28-04-1994 21:23:26 (UTC)
  • 28-04-1994 23:23:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9760, 12.5790 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
Cannara PG 2 4305 4305
Bevagna PG 5 5081 9386
Gualdo Cattaneo PG 8 6155 15541
Spello PG 8 8645 24186
Bettona PG 9 4367 28553
Bastia Umbra PG 10 21874 50427
Foligno PG 10 57155 107582
Montefalco PG 11 5679 113261
Assisi PG 11 28299 141560
Deruta PG 13 9669 151229
Torgiano PG 13 6725 157954
Collazzone PG 15 3473 161427
Giano dell'Umbria PG 16 3846 165273
Valtopina PG 17 1398 166671
Trevi PG 18 8469 175140
Castel Ritaldi PG 19 3278 178418

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Foligno (57155 inhabitants)
21 Km SE of Perugia (166134 inhabitants)
46 Km N of Terni (111501 inhabitants)
73 Km NE of Viterbo (67173 inhabitants)
79 Km SE of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 inhabitants)
98 Km W of Teramo (54892 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 2.5
ML-VAX 1.6
1994-04-28
21:23:26
42.976 12.579 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 208699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-04-28 21:23:26 ± 0.245
Latitude 42.9760 ± 0.0130
Longitude 12.5790 ± 0.0302
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 208699

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) 2849.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.01400
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 208699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:16:38

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 208699
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
--.AQU.Z. 1994-04-28T21:23:56.48 10.0 undecidable manual SG 135 0.8658 -0.33 0.6
--.SDI.Z. 1994-04-28T21:23:55.90 10.0 undecidable manual PN 143 1.554 1.56 0.1
--.CRE.Z. 1994-04-28T21:23:53.63 10.0 undecidable manual SG 324 0.777 -0.66 0.4
--.MNS.Z. 1994-04-28T21:23:48.60 10.0 undecidable manual SG 172 0.5883 -0.02 0.7
--.SFI.Z. 1994-04-28T21:23:47.84 10.0 undecidable manual PG 330 1.0656 0.29 1.3
--.AQU.Z. 1994-04-28T21:23:43.13 10.0 undecidable manual PG 135 0.8658 -0.7 1
--.CRE.Z. 1994-04-28T21:23:42.45 10.0 undecidable manual PG 324 0.777 0.08 1.6
--.MNS.Z. 1994-04-28T21:23:38.37 10.0 undecidable manual PG 172 0.5883 -0.42 1.4
--.ASS.Z. 1994-04-28T21:23:31.49 10.0 undecidable manual SG 31 0.0999 1.11 0.2
--.ASS.Z. 1994-04-28T21:23:28.13 10.0 positive manual PG 31 0.0999 -0.44 2.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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