Earthquake with magnitude of Md 2.7 on date 23-12-2002 and time 03:11:59 (UTC) in region 6 km S Cascia (PG)

A magnitude Md 2.7 earthquake occured in region: 6 km S Cascia (PG), on

  • 23-12-2002 03:11:59 (UTC)
  • 23-12-2002 04:11:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.67, 13.03 at 2 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
Cascia PG 6 3217 3217
Monteleone di Spoleto PG 6 599 3816
Poggiodomo PG 9 117 3933
Cittareale RI 12 482 4415
Leonessa RI 13 2435 6850
Norcia PG 15 4957 11807
Scheggino PG 17 461 12268
Posta RI 17 694 12962
Sant'Anatolia di Narco PG 17 564 13526
Polino TR 18 233 13759
Vallo di Nera PG 18 364 14123
Accumoli RI 18 667 14790
Cerreto di Spoleto PG 19 1075 15865
Borbona RI 19 617 16482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Terni (111501 inhabitants)
42 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
56 Km W of Teramo (54892 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
80 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
97 Km NE of Roma (2864731 inhabitants)
100 Km W of Pescara (121014 inhabitants)
100 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
Rev 1000 Md 2.7
ML-VAX 1.8
2002-12-23
03:11:59
42.67 13.03 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 465319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-12-23 03:11:59 ± 0.157
Latitude 42.67 ± 0.01
Longitude 13.03 ± 0.01
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 465319

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) 1174
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.0034
Epicentral distance of station farthest from the epicenter (degree) 0.01004
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:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 465319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:21:01

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 465319
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 Takeoff_angle Residual Weight
--.ARV.Z. 2002-12-23T03:12:29.81 10.0 undecidable manual SG 355 0.0074 -0.03 0.6
--.SNTG.Z. 2002-12-23T03:12:22.24 10.0 undecidable manual SG 353 0.0053 0.2 0.5
--.SDI.Z. 2002-12-23T03:12:22.27 10.0 undecidable manual PN 148 0.01 -0.08 1.1
--.FSSB.Z. 2002-12-23T03:12:21.17 10.0 undecidable manual PG 349 0.0093 0.24 0.8
--.ASS.Z. 2002-12-23T03:12:17.27 10.0 undecidable manual SG 325 0.0043 -0.93 0
--.ARV.Z. 2002-12-23T03:12:16.79 10.0 undecidable manual PG 355 0.0074 -0.3 0.7
--.AQU.Z. 2002-12-23T03:12:15.63 10.0 undecidable manual SG 138 0.0037 -0.17 0.5
--.MNS.Z. 2002-12-23T03:12:14.60 10.0 undecidable manual SG 221 0.0034 -0.31 0.3
--.PTQR.Z. 2002-12-23T03:12:14.67 10.0 undecidable manual PG 156 0.0063 0 1.6
--.SNTG.Z. 2002-12-23T03:12:12.62 10.0 undecidable manual PG 353 0.0053 0.03 1.6
--.ASS.Z. 2002-12-23T03:12:10.78 10.0 undecidable manual PG 325 0.0043 0.4 0.5
--.AQU.Z. 2002-12-23T03:12:08.98 10.0 undecidable manual PG 138 0.0037 -0.01 1.6
--.MNS.Z. 2002-12-23T03:12:08.27 10.0 positive manual PG 221 0.0034 0.11 3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download