Earthquake with magnitude of Md 2.3 on date 10-10-1999 and time 18:05:15 (Italy) in region 3 km N Cittareale (RI)

A magnitude Md 2.3 earthquake occured in region: 3 km N Cittareale (RI), on

  • 10-10-1999 16:05:15 (UTC)
  • 10-10-1999 18:05:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6470, 13.1690 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
Cittareale RI 3 482 482
Accumoli RI 9 667 1149
Amatrice RI 10 2657 3806
Posta RI 15 694 4500
Montereale AQ 15 2581 7081
Cascia PG 15 3217 10298
Borbona RI 15 617 10915
Norcia PG 17 4957 15872
Arquata del Tronto AP 18 1178 17050
Monteleone di Spoleto PG 18 599 17649
Capitignano AQ 18 665 18314
Campotosto AQ 19 542 18856
Leonessa RI 19 2435 21291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
44 Km E of Terni (111501 inhabitants)
44 Km W of Teramo (54892 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
88 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
91 Km E of Viterbo (67173 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 1999-10-10
16:05:15
42.647 13.169 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 374919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-10-10 16:05:15 ± 0.181
Latitude 42.6470 ± 0.0088
Longitude 13.1690 ± 0.0212
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 374919

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) 1993.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00777
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 374919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:52:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1999-10-10T16:05:46.43 10.0 undecidable manual SG 349 0.8658 0.7 0.2
--.SNTG.Z. 1999-10-10T16:05:38.22 10.0 undecidable manual SG 344 0.6327 0.1 0.7
--.ASS.Z. 1999-10-10T16:05:36.92 10.0 undecidable manual SG 317 0.555 0.98 0.1
--.MNS.Z. 1999-10-10T16:05:31.37 10.0 undecidable manual SG 234 0.444 -0.82 0.1
--.ARV.Z. 1999-10-10T16:05:30.34 10.0 undecidable manual PG! 349 0.8658 -2.82 0
--.AQU.Z. 1999-10-10T16:05:28.67 10.0 undecidable manual SG 149 0.333 -0.13 0.8
--.SNTG.Z. 1999-10-10T16:05:28.22 10.0 undecidable manual PG 344 0.6327 -0.55 0.8
--.ASS.Z. 1999-10-10T16:05:27.59 10.0 undecidable manual PG 317 0.555 0.09 1.9
--.MNS.Z. 1999-10-10T16:05:25.46 10.0 positive manual PG 234 0.444 0.12 3.9
--.NRCA.Z. 1999-10-10T16:05:23.39 10.0 undecidable manual SG 347 0.1887 -0.63 0.3
--.AQU.Z. 1999-10-10T16:05:23.69 10.0 undecidable manual PG 149 0.333 0.31 1.6
--.NRCA.Z. 1999-10-10T16:05:20.41 10.0 undecidable manual PG 347 0.1887 -0.21 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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