Earthquake with magnitude of Md 2.3 on date 07-07-1995 and time 07:25:15 (Italy) in region 2 km SW Norcia (PG)

A magnitude Md 2.3 earthquake occured in region: 2 km SW Norcia (PG), on

  • 07-07-1995 05:25:15 (UTC)
  • 07-07-1995 07:25:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7820, 13.0820 at 10 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 2 4957 4957
Cascia PG 9 3217 8174
Preci PG 11 724 8898
Castelsantangelo sul Nera MC 14 281 9179
Cerreto di Spoleto PG 14 1075 10254
Poggiodomo PG 14 117 10371
Accumoli RI 17 667 11038
Visso MC 17 1107 12145
Sellano PG 17 1079 13224
Arquata del Tronto AP 18 1178 14402
Vallo di Nera PG 18 364 14766
Monteleone di Spoleto PG 18 599 15365
Ussita MC 19 444 15809
Cittareale RI 19 482 16291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SE of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
99 Km W of Pescara (121014 inhabitants)
100 Km SW of Ancona (100861 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 2.3
ML-VAX 1.9
1995-07-07
05:25:15
42.782 13.082 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 228989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-07-07 05:25:15 ± 0.46
Latitude 42.7820 ± 0.0105
Longitude 13.0820 ± 0.0499
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 228989

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) 4236.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 224
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00372
Epicentral distance of station farthest from the epicenter (degree) 0.00842
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 228989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:36:44

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 228989
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
--.FB9.Z. 1995-07-07T05:25:48.66 10.0 undecidable manual SG 346 0.9324 0.78 0.2
--.ARV.Z. 1995-07-07T05:25:41.27 10.0 undecidable manual SG 351 0.7215 0.22 0.6
--.FB9.Z. 1995-07-07T05:25:34.99 10.0 undecidable manual PG 346 0.9324 0.62 0.7
--.MNS.Z. 1995-07-07T05:25:34.19 10.0 undecidable manual SG 216 0.4995 0.48 0.5
--.ASS.Z. 1995-07-07T05:25:30.99 10.0 undecidable manual SG 311 0.4107 -0.35 0.6
--.ARV.Z. 1995-07-07T05:25:29.56 10.0 undecidable manual PG 351 0.7215 -0.87 0.4
--.MNS.Z. 1995-07-07T05:25:26.80 10.0 positive manual PG 216 0.4995 -0.11 3.6
--.ASS.Z. 1995-07-07T05:25:24.47 10.0 undecidable manual PG 311 0.4107 -0.35 1.4
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