Earthquake with magnitude of ML 1.5 on date 17-12-2010 and time 20:13:09 (UTC) in region 8 km NW Accumoli (RI)

A magnitude ML 1.5 earthquake occured in region: 8 km NW Accumoli (RI), on

  • 17-12-2010 20:13:09 (UTC)
  • 17-12-2010 21:13:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7310, 13.1680 at 11 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 8 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 12 1178 6802
Cittareale RI 13 482 7284
Cascia PG 13 3217 10501
Amatrice RI 15 2657 13158
Castelsantangelo sul Nera MC 18 281 13439
Montegallo AP 18 523 13962
Poggiodomo PG 19 117 14079
Preci PG 20 724 14803
Monteleone di Spoleto PG 20 599 15402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km W of Teramo (54892 inhabitants)
45 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)
91 Km NE of Tivoli (56533 inhabitants)
91 Km W of Pescara (121014 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 1.5
2010-12-17
20:13:09
42.731 13.168 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1152159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-12-17 20:13:09 ± 0.28
Latitude 42.7310 ± 0.0036
Longitude 13.1680 ± 0.0061
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1152159

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 524
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
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) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.10972
Epicentral distance of station farthest from the epicenter (degree) 0.15918
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 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1152159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:24:46

Md:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 1152159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:24:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2010-12-17T20:13:17.06 0.1 undecidable manual Sg 129 17.6712 0.086 98
IV.LNSS.HHN. 2010-12-17T20:13:16.95 0.1 undecidable manual Sg 216 17.5713 -0.008 100
IV.NRCA.HHZ. 2010-12-17T20:13:15.37 0.1 undecidable manual Sg 339 12.1767 -0.089 99
IV.SMA1.EHZ. 2010-12-17T20:13:13.77 0.1 undecidable manual Pg 129 17.6712 -0.162 97
IV.LNSS.HHN. 2010-12-17T20:13:13.93 0.1 undecidable manual Pg 216 17.5713 0.003 100
IV.NRCA.HHZ. 2010-12-17T20:13:13.20 0.1 undecidable manual Pg 339 12.1767 0.145 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