Earthquake with magnitude of ML 0.4 on date 10-03-2011 and time 21:46:28 (UTC) in region 5 km S Cittareale (RI)

A magnitude ML 0.4 earthquake occured in region: 5 km S Cittareale (RI), on

  • 10-03-2011 21:46:28 (UTC)
  • 10-03-2011 22:46:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5760, 13.1720 at 8 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 5 482 482
Borbona RI 8 617 1099
Montereale AQ 8 2581 3680
Posta RI 8 694 4374
Amatrice RI 11 2657 7031
Capitignano AQ 12 665 7696
Cagnano Amiterno AQ 14 1369 9065
Accumoli RI 15 667 9732
Campotosto AQ 16 542 10274
Barete AQ 17 737 11011
Micigliano RI 17 127 11138
Leonessa RI 17 2435 13573
Pizzoli AQ 19 4326 17899
Antrodoco RI 19 2588 20487
Monteleone di Spoleto PG 20 599 21086

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
43 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
85 Km W of Chieti (51815 inhabitants)
86 Km W of Pescara (121014 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
95 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 1.2
ML 0.4
2011-03-10
21:46:28
42.576 13.172 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1180639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-10 21:46:28 ± 0.1
Latitude 42.5760 ± 0.0036
Longitude 13.1720 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1180639

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 167
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
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) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.10072
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:0.4

Field Value
Value 0.4
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1180639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:02:29

Md:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1180639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:02:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHE. 2011-03-10T21:46:33.12 0.1 undecidable manual Sg 286 11.1777 0.035 98
IV.RM33.EHE. 2011-03-10T21:46:32.28 0.1 undecidable manual Sg 155 8.1807 -0.012 99
IV.RM29.EHN. 2011-03-10T21:46:31.33 0.1 undecidable manual Sg 118 3.3966 -0.023 100
IV.RM29.EHN. 2011-03-10T21:46:30.09 0.1 undecidable manual Pg 118 3.3966 0.04 100
IV.RM33.EHE. 2011-03-10T21:46:30.62 0.1 undecidable manual Pg 155 8.1807 0.02 99
IV.LNSS.HHE. 2011-03-10T21:46:30.99 0.1 undecidable manual Pg 286 11.1777 -0.061 98
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