Earthquake with magnitude of ML 2.0 on date 04-01-2013 and time 09:38:16 (UTC) in region Tirreno Settentrionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Settentrionale (MARE), on

  • 04-01-2013 09:38:16 (UTC)
  • 04-01-2013 10:38:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.9500, 10.0460 at 23 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 2.0 2013-01-04
09:38:16
41.9495 10.0458 23 2015-01-20
11:18:16
Bollettino Sismico Italiano INGV 5523151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-01-04 09:38:16 ± 0.25
Latitude 41.9495 ± 0.0189
Longitude 10.0458 ± 0.0133
Depth (km) 23 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5523151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1924
Semi-minor axis of confidence ellipse (meter) 1061
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 344
Circular confidence region, given by single value of horizontal uncertainty (meter) 1920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.58276
Epicentral distance of station farthest from the epicenter (degree) 2.50371
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 5523151
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:07:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TOLF.HHE. 2013-01-04T09:39:00.58 0.6 undecidable manual S 85 161.616 54 -0.64 34
MN.VSL.BHZ. 2013-01-04T09:38:57.20 0.3 undecidable manual P 192 277.9107 54 0.27 26
IV.CASP.HHZ. 2013-01-04T09:38:49.30 0.6 undecidable manual S 35 114.996 97 -0.87 35
RD.PGT2.BHZ. 2013-01-04T09:38:47.80 0.6 undecidable manual S 308 108.6135 97 -0.68 40
IV.MAON.HHE. 2013-01-04T09:38:46.80 0.6 undecidable manual S 59 103.8183 98 -0.41 42
IV.CELB.HHZ. 2013-01-04T09:38:43.70 0.6 undecidable manual S 9 89.4438 99 0.28 46
IV.FROS.HHE. 2013-01-04T09:38:43.37 0.3 undecidable manual P 33 166.7109 54 0.28 56
IV.ARCI.HHE. 2013-01-04T09:38:42.57 0.6 undecidable manual P 49 154.0347 54 1.05 30
IV.TOLF.HHE. 2013-01-04T09:38:41.61 0.6 undecidable manual P 85 161.616 54 -0.85 31
IV.TRIF.HHE. 2013-01-04T09:38:40.54 1.0 undecidable manual P 28 147.0417 54 -0.11 21
FR.SMPL.HHZ. 2013-01-04T09:38:36.40 0.6 undecidable manual S 285 64.6908 103 -0.54 45
IV.CASP.HHZ. 2013-01-04T09:38:36.20 0.1 undecidable manual P 35 114.996 97 0.12 90
RD.PGT2.BHZ. 2013-01-04T09:38:35.30 0.1 undecidable manual P 308 108.6135 97 0.2 89
IV.MAON.HHE. 2013-01-04T09:38:35.02 0.3 undecidable manual P 59 103.8183 98 0.65 61
IV.CELB.HHZ. 2013-01-04T09:38:32.24 0.3 undecidable manual P 9 89.4438 99 0.06 72
FR.SMPL.HHZ. 2013-01-04T09:38:28.51 0.1 negative manual P 285 64.6908 103 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CASP.HHE. ML:1.8 0.0000533 0.18 AML other m 2013-01-04T09:38:54.17
IV.CASP.HHN. ML:1.8 0.00005434999999999999 0.62 AML other m 2013-01-04T09:38:56.69
IV.CELB.HHN. ML:1.9 0.0000906 0.1 AML other m 2013-01-04T09:38:44.54
IV.CELB.HHE. ML:2.0 0.0001035 1.14 AML other m 2013-01-04T09:38:44.46
RD.PGT2.BHE. ML:2.1 0.00011305000000000001 0.24 AML other m 2013-01-04T09:38:48.44
RD.PGT2.BHN. ML:2.1 0.00011085 0.28 AML other m 2013-01-04T09:38:48.52
FR.SMPL.HHE.00 ML:3.6 0.00743 0.54 AML other m 2013-01-04T09:38:36.78
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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