Earthquake with magnitude of Md 2.5 on date 05-07-2002 and time 17:10:04 (UTC) in region 7 km SW Spoleto (PG)

A magnitude Md 2.5 earthquake occured in region: 7 km SW Spoleto (PG), on

  • 05-07-2002 17:10:04 (UTC)
  • 05-07-2002 19:10:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6850, 12.6900 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
Spoleto PG 7 38218 38218
Ferentillo TR 11 1913 40131
Montefranco TR 12 1276 41407
Acquasparta TR 12 4778 46185
Scheggino PG 12 461 46646
Arrone TR 13 2763 49409
Sant'Anatolia di Narco PG 13 564 49973
Terni TR 14 111501 161474
San Gemini TR 14 5018 166492
Castel Ritaldi PG 16 3278 169770
Campello sul Clitunno PG 17 2442 172212
Polino TR 17 233 172445
Montecastrilli TR 17 5022 177467
Massa Martana PG 17 3770 181237
Vallo di Nera PG 17 364 181601
Giano dell'Umbria PG 19 3846 185447
Labro RI 20 374 185821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km N of Terni (111501 inhabitants)
30 Km S of Foligno (57155 inhabitants)
53 Km SE of Perugia (166134 inhabitants)
56 Km NE of Viterbo (67173 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
76 Km N of Guidonia Montecelio (88673 inhabitants)
81 Km N of Tivoli (56533 inhabitants)
83 Km W of Teramo (54892 inhabitants)
90 Km N of Roma (2864731 inhabitants)
99 Km NE of Civitavecchia (52991 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
2002-07-05
17:10:04
42.685 12.69 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 444599
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-07-05 17:10:04 ± 0.204
Latitude 42.6850 ± 0.0081
Longitude 12.6900 ± 0.0257
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 444599

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) 2283.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.01149
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 444599
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:00:31

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 444599
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
--.ARV.Z. 2002-07-05T17:10:34.22 10.0 undecidable manual SG 12 0.8214 0 0.7
--.SDI.Z. 2002-07-05T17:10:29.95 10.0 undecidable manual PN 139 1.2765 0.95 0.5
--.SNTG.Z. 2002-07-05T17:10:26.90 10.0 undecidable manual SG 17 0.5883 0.25 0.7
--.FSSB.Z. 2002-07-05T17:10:25.82 10.0 undecidable manual PG 3 1.0101 0.89 0.5
--.PTQR.Z. 2002-07-05T17:10:22.90 10.0 undecidable manual PG 141 0.8436 0.99 0.6
--.ARV.Z. 2002-07-05T17:10:20.83 10.0 undecidable manual PG 12 0.8214 -0.87 0.5
--.ASS.Z. 2002-07-05T17:10:18.77 10.0 undecidable manual SG 355 0.3774 -0.47 0.6
--.NRCA.Z. 2002-07-05T17:10:17.48 10.0 undecidable manual SG 64 0.3441 -0.46 0.5
--.SNTG.Z. 2002-07-05T17:10:16.92 10.0 undecidable manual PG 17 0.5883 -0.4 1.5
--.MNS.Z. 2002-07-05T17:10:15.64 10.0 undecidable manual SG 181 0.2997 -0.64 0.3
--.ASS.Z. 2002-07-05T17:10:13.46 10.0 undecidable manual PG 355 0.3774 0.42 1.5
--.NRCA.Z. 2002-07-05T17:10:12.23 10.0 undecidable manual PG 64 0.3441 -0.06 1.8
--.MNS.Z. 2002-07-05T17:10:11.13 10.0 positive manual PG 181 0.2997 -0.21 3.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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