Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 06-04-2013 and time 17:04:21 (UTC) in region Adriatico Settentrionale (MARE)

A magnitude ML 1.8 earthquake occured in region: Adriatico Settentrionale (MARE), on

  • 06-04-2013 17:04:21 (UTC)
  • 06-04-2013 19:04:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1310, 13.5870 at 27 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NE of Fano (60888 inhabitants)
57 Km N of Ancona (100861 inhabitants)
59 Km E of Pesaro (94582 inhabitants)
82 Km E of Rimini (147750 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 		ML 1.8 2013-04-06
17:04:21		 44.1313 13.5872 27 2015-01-20
11:24:30		 Bollettino Sismico Italiano INGV 3635981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-06 17:04:21 ± 0.21
Latitude 44.1313 ± 0.0162
Longitude 13.5872 ± 0.0213
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3635981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1961
Semi-minor axis of confidence ellipse (meter) 1093
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 147
Circular confidence region, given by single value of horizontal uncertainty (meter) 1960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 310
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.56927
Epicentral distance of station farthest from the epicenter (degree) 1.13404
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 3635981
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:24:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2013-04-06T17:04:53.00 0.3 undecidable manual S 232 107.0151 100 -0.03 69
IV.SSFR.HHZ. 2013-04-06T17:04:52.20 0.3 undecidable manual S 220 100.5216 100 0.88 58
IV.NARO.HHE. 2013-04-06T17:04:51.20 0.6 undecidable manual S 235 99.0231 101 0.26 47
IV.EL6.EHZ. 2013-04-06T17:04:50.40 0.1 undecidable manual S 204 97.125 101 -0.03 94
IV.CING.HHE. 2013-04-06T17:04:48.37 0.6 undecidable manual S 201 89.5437 102 -0.07 47
IV.MPAG.EHZ. 2013-04-06T17:04:47.50 0.3 undecidable manual S 230 86.5467 102 -0.15 70
IV.PESA.HHE. 2013-04-06T17:04:42.14 0.6 undecidable manual S 251 63.1923 107 0.51 47
IV.ATVO.HHE. 2013-04-06T17:04:42.42 0.6 undecidable manual P 229 125.874 54 -0.06 46
IV.ATPI.EHE. 2013-04-06T17:04:41.94 0.1 undecidable manual P 232 121.2897 54 0.04 90
IV.PIEI.HHZ. 2013-04-06T17:04:39.52 0.1 undecidable manual P 232 107.0151 100 -0.25 90
IV.SSFR.HHZ. 2013-04-06T17:04:38.59 0.1 undecidable manual P 220 100.5216 100 -0.19 92
IV.NARO.HHE. 2013-04-06T17:04:38.40 0.3 undecidable manual P 235 99.0231 101 -0.16 70
IV.EL6.EHZ. 2013-04-06T17:04:38.29 0.1 undecidable manual P 204 97.125 101 0.02 97
IV.CING.HHE. 2013-04-06T17:04:37.43 0.3 undecidable manual P 201 89.5437 102 0.31 69
IV.MPAG.EHZ. 2013-04-06T17:04:36.27 0.1 undecidable manual P 230 86.5467 102 -0.39 91
IV.FSSB.HHZ. 2013-04-06T17:04:35.60 0.1 undecidable manual P 233 80.9523 103 -0.23 95
IV.COR1.EHE. 2013-04-06T17:04:34.77 0.3 undecidable manual P 220 72.5718 105 0.19 73
IV.PESA.HHE. 2013-04-06T17:04:33.34 0.1 undecidable manual P 251 63.1923 107 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FSSB.HHE. ML:1.6 0.00005075 1.22 AML other m 2013-04-06T17:04:49.01
IV.FSSB.HHN. ML:1.7 0.0000663 0.2 AML other m 2013-04-06T17:04:49.32
IV.PESA.HHN. ML:2.0 0.0001575 1.36 AML other m 2013-04-06T17:04:43.26
IV.PESA.HHE. ML:1.9 0.0001421 1.44 AML other m 2013-04-06T17:04:43.92
IV.SSFR.HHN. ML:1.8 0.0000634 0.26 AML other m 2013-04-06T17:04:52.79
IV.SSFR.HHE. ML:1.8 0.00006705 0.22 AML other m 2013-04-06T17:04:52.80
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download