Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 21-11-2013 and time 06:05:47 (UTC) in region 5 km N Borgo Val di Taro (PR)

A magnitude ML 2.1 earthquake occured in region: 5 km N Borgo Val di Taro (PR), on

  • 21-11-2013 06:05:47 (UTC)
  • 21-11-2013 07:05:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5380, 9.7730 at 7 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
Borgo Val di Taro PR 6 6999 6999
Valmozzola PR 10 539 7538
Compiano PR 10 1112 8650
Bardi PR 11 2227 10877
Albareto PR 12 2156 13033
Bedonia PR 12 3482 16515
Tornolo PR 13 1010 17525
Varsi PR 15 1230 18755
Berceto PR 18 2109 20864
Solignano PR 19 1773 22637
Pontremoli MS 20 7357 29994

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km N of La Spezia (93959 inhabitants)
53 Km SW of Parma (192836 inhabitants)
57 Km NW of Carrara (63133 inhabitants)
58 Km S of Piacenza (102191 inhabitants)
63 Km NW of Massa (69479 inhabitants)
68 Km E of Genova (586655 inhabitants)
69 Km SW of Cremona (71901 inhabitants)
70 Km W of Reggio nell'Emilia (171345 inhabitants)
84 Km NW of Viareggio (62467 inhabitants)
87 Km SE of Pavia (72576 inhabitants)
92 Km W of Modena (184973 inhabitants)
92 Km W of Carpi (70699 inhabitants)
97 Km NW of Lucca (89046 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 2.1 2013-11-21
06:05:47		 44.5382 9.7728 7 2015-01-20
11:29:51		 Bollettino Sismico Italiano INGV 8930971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-11-21 06:05:47 ± 0.08
Latitude 44.5382 ± 0.0063
Longitude 9.7728 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 8930971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 700
Semi-minor axis of confidence ellipse (meter) 354
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.21404
Epicentral distance of station farthest from the epicenter (degree) 0.97756
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:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 8930971
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:10:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHZ. 2013-11-21T06:06:19.93 0.6 undecidable manual S 146 108.5136 50 0.18 42
GU.MAIM.HHE. 2013-11-21T06:06:14.55 0.6 undecidable manual S 140 89.7435 50 -0.18 43
MN.VLC.HHE. 2013-11-21T06:06:08.00 0.6 undecidable manual S 131 64.2912 50 0.06 47
GU.SARM.HHE. 2013-11-21T06:06:07.80 0.6 undecidable manual S 128 63.3921 50 0.09 46
IV.PII.HHZ. 2013-11-21T06:06:06.22 0.3 undecidable manual P 146 108.5136 50 0.14 63
IV.ERBM.EHE. 2013-11-21T06:06:05.20 0.6 undecidable manual S 104 52.3032 50 0.46 44
GU.MAIM.HHE. 2013-11-21T06:06:03.30 0.3 undecidable manual P 140 89.7435 50 0.12 66
GU.EQUI.HHZ. 2013-11-21T06:06:03.90 0.6 undecidable manual S 144 51.1155 50 -0.52 43
IV.BDI.HHE. 2013-11-21T06:06:02.40 0.6 undecidable manual P 129 84.0492 50 0.09 45
GU.GORR.HHE. 2013-11-21T06:06:00.80 0.3 undecidable manual S 282 38.7279 100 -0.26 70
MN.VLC.HHE. 2013-11-21T06:05:59.27 0.3 undecidable manual P 131 64.2912 50 0.01 71
GU.SARM.HHE. 2013-11-21T06:05:59.03 0.1 undecidable manual P 128 63.3921 50 -0.1 93
IV.MSSA.HHZ. 2013-11-21T06:05:58.80 0.6 undecidable manual S 220 31.8459 102 0.07 49
IV.ERBM.EHE. 2013-11-21T06:05:57.63 0.3 undecidable manual P 104 52.3032 50 0.21 69
GU.EQUI.HHZ. 2013-11-21T06:05:56.90 0.1 undecidable manual P 144 51.1155 50 -0.33 90
GU.FIVI.HNE. 2013-11-21T06:05:55.93 0.3 undecidable manual P 140 43.4232 50 -0.12 72
GU.GRAM.HHZ. 2013-11-21T06:05:55.80 0.3 undecidable manual S 103 23.754 106 -0.2 73
GU.GORR.HHE. 2013-11-21T06:05:55.35 0.1 undecidable manual P 282 38.7279 100 0.06 98
IV.MSSA.HHZ. 2013-11-21T06:05:54.21 0.1 positive manual P 220 31.8459 102 0.26 95
GU.GRAM.HHZ. 2013-11-21T06:05:52.44 0.1 negative manual P 103 23.754 106 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:2.1 0.000743 0.3 AML other m 2013-11-21T06:05:56.70
GU.GRAM.HHE. ML:2.2 0.0009739999999999999 0.36 AML other m 2013-11-21T06:05:57.43
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
Waveforms Seismic signals in miniseed + resp format Download