Earthquake with magnitude of ML 0.4 on date 14-05-2011 and time 03:18:40 (Italy) in region 3 km W Accumoli (RI)

A magnitude ML 0.4 earthquake occured in region: 3 km W Accumoli (RI), on

  • 14-05-2011 01:18:40 (UTC)
  • 14-05-2011 03:18:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7080, 13.2190 at 9 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 3 667 667
Arquata del Tronto AP 10 1178 1845
Amatrice RI 10 2657 4502
Cittareale RI 11 482 4984
Norcia PG 14 4957 9941
Cascia PG 17 3217 13158
Acquasanta Terme AP 17 2916 16074
Montegallo AP 18 523 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
42 Km NW of L'Aquila (69753 inhabitants)
50 Km E of Terni (111501 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
97 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 0.4
2011-05-14
01:18:40
42.708 13.219 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1212879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-05-14 01:18:40 ± 0.04
Latitude 42.7080 ± 0.0009
Longitude 13.2190 ± 0.0012
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1212879

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 95
Semi-minor axis of confidence ellipse (meter) 29
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 141.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
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) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.16817
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 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1212879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:46:10

Md:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 1212879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:46:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHN. 2011-05-14T01:18:47.69 0.3 undecidable manual Sg 231 18.6702 0.02 74
IV.NRCA.HHN. 2011-05-14T01:18:46.93 0.1 undecidable manual Sg 328 16.3725 -0.005 100
IV.SMA1.EHZ. 2011-05-14T01:18:45.87 0.3 undecidable manual Sg 132 12.7761 -0.012 75
IV.NRCA.HHN. 2011-05-14T01:18:44.23 0.1 undecidable manual Pg 328 16.3725 0.009 100
IV.LNSS.HHN. 2011-05-14T01:18:44.62 0.1 undecidable manual Pg 231 18.6702 -0.025 99
IV.SMA1.EHZ. 2011-05-14T01:18:43.63 0.1 undecidable manual Pg 132 12.7761 0.017 100
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