Earthquake with magnitude of Md 2.5 on date 27-09-1994 and time 03:33:55 (Italy) in region 5 km NW Sant'Anatolia di Narco (PG)

A magnitude Md 2.5 earthquake occured in region: 5 km NW Sant'Anatolia di Narco (PG), on

  • 27-09-1994 02:33:55 (UTC)
  • 27-09-1994 03:33:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7690, 12.8000 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
Sant'Anatolia di Narco PG 5 564 564
Vallo di Nera PG 5 364 928
Campello sul Clitunno PG 6 2442 3370
Spoleto PG 6 38218 41588
Scheggino PG 7 461 42049
Cerreto di Spoleto PG 11 1075 43124
Castel Ritaldi PG 12 3278 46402
Poggiodomo PG 13 117 46519
Trevi PG 13 8469 54988
Ferentillo TR 16 1913 56901
Sellano PG 17 1079 57980
Monteleone di Spoleto PG 18 599 58579
Cascia PG 18 3217 61796
Montefalco PG 18 5679 67475
Montefranco TR 19 1276 68751
Giano dell'Umbria PG 20 3846 72597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SE of Foligno (57155 inhabitants)
26 Km NE of Terni (111501 inhabitants)
50 Km SE of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
75 Km W of Teramo (54892 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
90 Km N of Tivoli (56533 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
1994-09-27
02:33:55
42.769 12.8 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 217199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-09-27 02:33:55 ± 0.188
Latitude 42.7690 ± 0.0080
Longitude 12.8000 ± 0.0299
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 217199

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) 2596.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.01166
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 6
Type of magnitude Md
Reference to an origin 217199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:25:00

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 217199
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
--.CRE.Z. 1994-09-27T02:34:31.67 10.0 undecidable manual SG 324 1.0434 -0.04 0.5
--.SDI.Z. 1994-09-27T02:34:21.00 10.0 undecidable manual PN 144 1.2987 1.28 0.1
--.ARV.Z. 1994-09-27T02:34:21.27 10.0 undecidable manual SG 8 0.7326 -0.34 0.5
--.CRE.Z. 1994-09-27T02:34:16.87 10.0 undecidable manual PG 324 1.0434 0.64 0.7
--.ARV.Z. 1994-09-27T02:34:10.24 10.0 undecidable manual PG 8 0.7326 -0.16 1.4
--.MNS.Z. 1994-09-27T02:34:09.63 10.0 undecidable manual SG 192 0.3885 -0.73 0.2
--.AQU.Z. 1994-09-27T02:34:07.61 10.0 undecidable manual PG 132 0.5994 -0.38 1
--.ASS.Z. 1994-09-27T02:34:07.20 10.0 undecidable manual SG 339 0.3108 -0.23 0.6
--.MNS.Z. 1994-09-27T02:34:03.87 10.0 negative manual PG 192 0.3885 -0.03 3.3
--.ASS.Z. 1994-09-27T02:34:01.96 10.0 undecidable manual PG 339 0.3108 -0.15 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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