Earthquake with magnitude of ML 0.7 on date 17-01-2011 and time 00:14:59 (Italy) in region 7 km NW Accumoli (RI)

A magnitude ML 0.7 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 16-01-2011 23:14:59 (UTC)
  • 17-01-2011 00:14:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7300, 13.1730 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
Accumoli RI 7 667 667
Norcia PG 10 4957 5624
Arquata del Tronto AP 11 1178 6802
Cittareale RI 12 482 7284
Cascia PG 13 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 18 523 13681
Castelsantangelo sul Nera MC 19 281 13962
Poggiodomo PG 20 117 14079
Acquasanta Terme AP 20 2916 16995
Preci PG 20 724 17719

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
47 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
92 Km W of Chieti (51815 inhabitants)
94 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 1.5
ML 0.7
2011-01-16
23:14:59
42.73 13.173 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1162469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-01-16 23:14:59 ± 0.08
Latitude 42.7300 ± 0.0009
Longitude 13.1730 ± 0.0024
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1162469

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 190
Semi-minor axis of confidence ellipse (meter) 75
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 223.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
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) 0.11152
Epicentral distance of station farthest from the epicenter (degree) 0.16008
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:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1162469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:38:25

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1162469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:38:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHN. 2011-01-16T23:15:06.09 0.6 undecidable manual Sg 217 17.7711 0.052 49
IV.SMA1.EHN. 2011-01-16T23:15:05.87 0.3 undecidable manual Sg 130 17.2716 -0.009 75
IV.NRCA.HHZ. 2011-01-16T23:15:04.40 0.1 undecidable manual Sg 337 12.3765 -0.02 100
IV.SMA1.EHN. 2011-01-16T23:15:03.07 0.1 undecidable manual Pg 130 17.2716 0.011 99
IV.LNSS.HHN. 2011-01-16T23:15:03.11 0.1 undecidable manual Pg 217 17.7711 -0.046 99
IV.NRCA.HHZ. 2011-01-16T23:15:02.25 0.1 undecidable manual Pg 337 12.3765 0.033 100
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