Earthquake with magnitude of ML 1.5 on date 12-07-2009 and time 06:00:23 (UTC) in region 1 km SW Cittareale (RI)

A magnitude ML 1.5 earthquake occured in region: 1 km SW Cittareale (RI), on

  • 12-07-2009 06:00:23 (UTC)
  • 12-07-2009 08:00:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6140, 13.1500 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 1 482 482
Posta RI 11 694 1176
Borbona RI 11 617 1793
Amatrice RI 12 2657 4450
Accumoli RI 12 667 5117
Montereale AQ 13 2581 7698
Cascia PG 16 3217 10915
Leonessa RI 16 2435 13350
Capitignano AQ 16 665 14015
Monteleone di Spoleto PG 17 599 14614
Cagnano Amiterno AQ 18 1369 15983
Campotosto AQ 19 542 16525
Micigliano RI 20 127 16652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
89 Km W of Chieti (51815 inhabitants)
89 Km W of Pescara (121014 inhabitants)
97 Km NE of Roma (2864731 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 1.6
ML 1.5
2009-07-12
06:00:23
42.614 13.15 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 923469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-07-12 06:00:23 ± 0.05
Latitude 42.6140 ± 0.0036
Longitude 13.1500 ± 0.0012
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 923469

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 420
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 412.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.03
Epicentral distance of station closest to the epicenter (degree) 0.08094
Epicentral distance of station farthest from the epicenter (degree) 0.22033
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 923469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:35:21

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 923469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:35:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2009-07-12T06:00:32.64 0.3 undecidable manual Sg 353 24.4533 0.022 73
IV.NRCA.SHZ. 2009-07-12T06:00:28.71 0.1 undecidable manual Pg 353 24.4533 -0.028 97
IV.LNSS.HHZ. 2009-07-12T06:00:28.17 0.1 undecidable manual Sg 262 8.9799 -0.008 100
IV.SAN2.EHZ. 2009-07-12T06:00:28.64 0.1 undecidable manual Sg 80 10.9779 -0.008 100
IV.LNSS.HHZ. 2009-07-12T06:00:26.19 0.1 undecidable manual Pg 262 8.9799 0.014 100
IV.SAN2.EHZ. 2009-07-12T06:00:26.46 0.1 undecidable manual Pg 80 10.9779 0.014 100
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