Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 17-01-2011 and time 18:03:43 (Italy) in region Costa Marchigiana Anconetana (Ancona)

A magnitude ML 1.8 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on

  • 17-01-2011 17:03:43 (UTC)
  • 17-01-2011 18:03:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7920, 13.2510 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Senigallia AN 9 45027 45027
Mondolfo PU 13 14277 59304
San Costanzo PU 15 4786 64090
Montemarciano AN 18 9992 74082
Trecastelli AN 18 7625 81707
Fano PU 19 60888 142595
Monte Porzio PU 20 2836 145431

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Fano (60888 inhabitants)
29 Km NW of Ancona (100861 inhabitants)
30 Km E of Pesaro (94582 inhabitants)
63 Km E of Rimini (147750 inhabitants)
89 Km E of Cesena (96758 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 2.1
ML 1.8 		2011-01-17
17:03:43		 43.792 13.251 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1162669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-01-17 17:03:43 ± 0.29
Latitude 43.7920 ± 0.0135
Longitude 13.2510 ± 0.0137
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1162669

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1522
Semi-minor axis of confidence ellipse (meter) 939
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 21
Circular confidence region, given by single value of horizontal uncertainty (meter) 1860.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.82558
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1162669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:38:40

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1162669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:38:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHN. 2011-01-17T17:04:11.65 0.3 undecidable manual Sg 198 91.6416 0.785 53
IV.MURB.HHN. 2011-01-17T17:04:09.60 10.0 undecidable manual Sg 0 0 0
IV.FDMO.HHZ. 2011-01-17T17:04:09.55 0.3 undecidable manual Sg 189 84.8484 0.509 60
IV.ATPC.HHZ. 2011-01-17T17:04:06.56 0.3 undecidable manual Sg 242 72.4719 0.822 54
IV.PIEI.HHN. 2011-01-17T17:04:03.83 0.3 undecidable manual Sg 244 64.0914 0.331 65
IV.SNTG.HHE. 2011-01-17T17:04:03.54 0.3 undecidable manual Sg 203 64.5909 -0.095 68
IV.FRON.EHZ. 2011-01-17T17:04:01.20 0.3 undecidable manual Sg 234 52.0035 0.935 54
IV.MURB.HHN. 2011-01-17T17:04:00.21 10.0 undecidable manual Pg 0 0 0
IV.SSFR.HHZ. 2011-01-17T17:04:00.48 0.1 undecidable manual Sg 224 54.501 -0.466 86
IV.CESI.HHN. 2011-01-17T17:03:59.28 0.3 undecidable manual Pg 198 91.6416 -0.093 65
IV.AOI.HHN. 2011-01-17T17:03:57.09 0.3 undecidable manual Sg 133 38.9277 0.307 69
IV.FDMO.HHZ. 2011-01-17T17:03:57.59 0.3 undecidable manual Pg 189 84.8484 -0.733 55
IV.FSSB.HHZ. 2011-01-17T17:03:56.87 0.1 undecidable manual Sg 254 39.5271 -0.065 96
IV.ATPC.HHZ. 2011-01-17T17:03:56.64 0.3 undecidable manual Pg 242 72.4719 0.226 66
IV.ARVD.HHZ. 2011-01-17T17:03:56.57 0.3 undecidable manual Sg 217 41.0256 -0.762 59
IV.SNTG.HHE. 2011-01-17T17:03:54.75 0.3 undecidable manual Pg 203 64.5909 -0.451 64
IV.PIEI.HHN. 2011-01-17T17:03:54.80 0.3 undecidable manual Pg 244 64.0914 -0.321 65
IV.SSFR.HHZ. 2011-01-17T17:03:53.15 0.3 undecidable manual Pg 224 54.501 -0.501 64
IV.FRON.EHZ. 2011-01-17T17:03:52.83 0.3 undecidable manual Pg 234 52.0035 -0.427 65
IV.PESA.HHZ. 2011-01-17T17:03:51.59 0.3 undecidable manual Pg 297 36.741 0.684 61
IV.FSSB.HHZ. 2011-01-17T17:03:51.15 0.3 undecidable manual Pg 254 39.5271 -0.185 70
IV.AOI.HHN. 2011-01-17T17:03:51.31 0.3 undecidable manual Pg 133 38.9277 0.063 72
IV.ARVD.HHZ. 2011-01-17T17:03:50.93 0.3 undecidable manual Pg 217 41.0256 -0.632 62
IV.SENI.EHZ. 2011-01-17T17:03:48.64 0.1 undecidable manual Sg 188 9.7791 0.126 100
IV.SENI.EHZ. 2011-01-17T17:03:46.77 0.3 undecidable manual Pg 188 9.7791 0.298 72
IV.GRFL.SHZ. 2011-01-17T17:03:26.44 10.0 undecidable manual Pg 0 0 0
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