Earthquake with magnitude of Md 2.4 on date 03-10-1995 and time 23:11:17 (UTC) in region 5 km S Norcia (PG)

A magnitude Md 2.4 earthquake occured in region: 5 km S Norcia (PG), on

  • 03-10-1995 23:11:17 (UTC)
  • 04-10-1995 00:11:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7470, 13.1030 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
Norcia PG 5 4957 4957
Cascia PG 8 3217 8174
Accumoli RI 13 667 8841
Poggiodomo PG 14 117 8958
Cittareale RI 15 482 9440
Preci PG 16 724 10164
Arquata del Tronto AP 16 1178 11342
Monteleone di Spoleto PG 16 599 11941
Castelsantangelo sul Nera MC 17 281 12222
Cerreto di Spoleto PG 17 1075 13297
Vallo di Nera PG 20 364 13661
Amatrice RI 20 2657 16318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SE of Foligno (57155 inhabitants)
43 Km E of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km W of Chieti (51815 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 2.4
ML-VAX 1.7
1995-10-03
23:11:17
42.747 13.103 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 233809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-10-03 23:11:17 ± 0.162
Latitude 42.7470 ± 0.0098
Longitude 13.1030 ± 0.0221
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 233809

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) 2105.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00405
Epicentral distance of station farthest from the epicenter (degree) 0.01352
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 233809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:41:24

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 233809
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
--.SFI.Z. 1995-10-03T23:11:45.00 10.0 undecidable manual PN 322 1.4652 0.39 1.1
--.ARV.Z. 1995-10-03T23:11:45.46 10.0 undecidable manual SG 351 0.7548 0.64 0.4
--.PGD.Z. 1995-10-03T23:11:44.50 10.0 undecidable manual PN 318 1.4985 -0.62 0.8
--.CRE.Z. 1995-10-03T23:11:41.50 10.0 undecidable manual PN 316 1.1988 0.5 1.1
--.SDI.Z. 1995-10-03T23:11:40.00 10.0 undecidable manual PN 153 1.1544 -0.34 1.3
--.RDP.Z. 1995-10-03T23:11:39.50 10.0 undecidable manual PG 196 1.0212 1.23 0.2
--.AQU.Z. 1995-10-03T23:11:35.00 10.0 undecidable manual SG 150 0.444 0.12 0.8
--.ASS.Z. 1995-10-03T23:11:35.50 10.0 undecidable manual SG 314 0.444 0.44 0.6
--.MNS.Z. 1995-10-03T23:11:35.50 10.0 undecidable manual SG 220 0.4773 -0.23 0.7
--.PQ9.Z. 1995-10-03T23:11:33.50 10.0 undecidable manual PG 163 0.7548 0.26 1.8
--.ARV.Z. 1995-10-03T23:11:32.89 10.0 undecidable manual PG 351 0.7548 -0.4 1.5
--.AQU.Z. 1995-10-03T23:11:27.00 10.0 undecidable manual PG 150 0.444 -0.55 1.2
--.ASS.Z. 1995-10-03T23:11:27.20 10.0 undecidable manual PG 314 0.444 -0.45 1.4
--.MNS.Z. 1995-10-03T23:11:27.50 10.0 undecidable manual PG 220 0.4773 -0.55 1.2
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