Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 09-09-2011 and time 04:28:39 (Italy) in region 3 km W Langhirano (PR)

A magnitude ML 2.1 earthquake occured in region: 3 km W Langhirano (PR), on

  • 09-09-2011 02:28:39 (UTC)
  • 09-09-2011 04:28:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6230, 10.2330 at 22 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
Langhirano PR 3 10315 10315
Lesignano de' Bagni PR 6 5028 15343
Neviano degli Arduini PR 8 3649 18992
Felino PR 8 8790 27782
Calestano PR 9 2100 29882
Sala Baganza PR 10 5561 35443
Terenzo PR 12 1196 36639
Tizzano Val Parma PR 12 2077 38716
Traversetolo PR 12 9425 48141
Fornovo di Taro PR 13 6100 54241
Canossa RE 14 3844 58085
Collecchio PR 15 14403 72488
San Polo d'Enza RE 15 6083 78571
Medesano PR 17 10828 89399
Montechiarugolo PR 17 10813 100212
Vetto RE 18 1860 102072
Varano de' Melegari PR 19 2676 104748
Quattro Castella RE 19 13195 117943
Montecchio Emilia RE 19 10530 128473
Bibbiano RE 20 10268 138741
Corniglio PR 20 1936 140677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Parma (192836 inhabitants)
33 Km W of Reggio nell'Emilia (171345 inhabitants)
55 Km W of Carpi (70699 inhabitants)
55 Km W of Modena (184973 inhabitants)
59 Km S of Cremona (71901 inhabitants)
62 Km N of Carrara (63133 inhabitants)
64 Km SE of Piacenza (102191 inhabitants)
66 Km N of Massa (69479 inhabitants)
66 Km NE of La Spezia (93959 inhabitants)
84 Km N of Viareggio (62467 inhabitants)
89 Km N of Lucca (89046 inhabitants)
89 Km W of Bologna (386663 inhabitants)
94 Km NW of Pistoia (90315 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 2.4
ML 2.1 		2011-09-09
02:28:39		 44.623 10.233 22 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1283819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-09-09 02:28:39 ± 0.14
Latitude 44.6230 ± 0.0063
Longitude 10.2330 ± 0.0126
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1283819

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1035
Semi-minor axis of confidence ellipse (meter) 282
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 112
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.44521
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 1283819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:23:53

Md:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 1283819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:23:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.FUORN.HHE. 2011-09-09T02:29:39.38 10.0 undecidable manual Pg 0 0 0
IV.APPI.EHE. 2011-09-09T02:29:37.93 10.0 undecidable manual Pg 0 0 0
MN.TUE.HHE. 2011-09-09T02:29:37.22 10.0 undecidable manual Pg 0 0 0
IV.VARE.HHE. 2011-09-09T02:29:32.81 10.0 undecidable manual Pg 0 0 0
IV.CRE.HHN. 2011-09-09T02:29:31.90 10.0 undecidable manual Pg 0 0 0
CH.MUGIO.HHE. 2011-09-09T02:29:29.01 10.0 undecidable manual Pg 0 0 0
NI.CGRP.HHE. 2011-09-09T02:29:29.53 10.0 undecidable manual Pg 0 0 0
GU.FINB.HHE. 2011-09-09T02:29:26.17 10.0 undecidable manual Pg 0 0 0
CH.BERNI.HHE. 2011-09-09T02:29:24.87 10.0 undecidable manual Pg 0 0 0
IV.TEOL.HHZ. 2011-09-09T02:29:19.81 1.0 undecidable manual Sg 54 139.6602 0.023 20
IV.SEI.SHE. 2011-09-09T02:29:17.51 10.0 undecidable manual Sg 0 0 0
IV.MAGA.HHZ. 2011-09-09T02:29:17.54 0.3 undecidable manual Sg 13 131.5683 -0.091 60
IV.ROVR.HHE. 2011-09-09T02:29:17.66 0.3 undecidable manual Sg 30 131.1687 0.114 59
IV.SALO.HHE. 2011-09-09T02:29:13.37 0.6 undecidable manual Sg 12 112.7982 0.725 35
IV.CTL8.EHE. 2011-09-09T02:29:11.63 10.0 undecidable manual Pg 0 0 0
IV.T0104.HHZ. 2011-09-09T02:29:07.28 10.0 undecidable manual Pg 0 0 0
IV.MABI.HHE. 2011-09-09T02:29:05.25 0.6 undecidable manual Pg 8 160.4172 -0.275 35
IV.VMG.SHZ. 2011-09-09T02:29:03.79 10.0 undecidable manual Pg 0 0 0
IV.TEOL.HHZ. 2011-09-09T02:29:02.93 0.3 undecidable manual Pg 54 139.6602 -0.013 60
IV.ROVR.HHE. 2011-09-09T02:29:01.29 0.3 undecidable manual Pg 30 131.1687 -0.358 57
IV.MAGA.HHZ. 2011-09-09T02:29:01.26 0.3 undecidable manual Pg 13 131.5683 -0.438 56
IV.BDI.HHZ. 2011-09-09T02:29:00.53 0.3 undecidable manual Sg 155 68.5758 -0.437 63
IV.SEI.SHE. 2011-09-09T02:29:00.26 10.0 undecidable manual Pg 0 0 0
IV.SALO.HHE. 2011-09-09T02:28:59.41 0.6 undecidable manual Pg 12 112.7982 0.591 37
GU.SC2M.HHE. 2011-09-09T02:28:59.42 0.6 undecidable manual Sg 247 60.2952 0.603 41
MN.VLC.HHZ. 2011-09-09T02:28:57.52 0.6 undecidable manual Sg 167 52.8027 0.646 41
IV.PTF.SHZ. 2011-09-09T02:28:56.99 0.1 undecidable manual Pg 138 99.0231 0.269 82
IV.NOVE.EHN. 2011-09-09T02:28:55.47 0.3 undecidable manual Sg 63 42.8238 1.159 49
GU.MAIM.HHE. 2011-09-09T02:28:53.88 0.3 undecidable manual Pg 165 81.252 -0.124 66
IV.BDI.HHZ. 2011-09-09T02:28:52.05 0.3 undecidable manual Pg 155 68.5758 -0.027 69
IV.BOB.HHE. 2011-09-09T02:28:51.95 0.6 undecidable manual Pg 285 63.9915 0.57 41
GU.SC2M.HHE. 2011-09-09T02:28:50.78 0.3 undecidable manual Pg 247 60.2952 -0.054 69
MN.VLC.HHZ. 2011-09-09T02:28:49.57 0.3 undecidable manual Pg 167 52.8027 -0.143 69
IV.PRMA.HHE. 2011-09-09T02:28:48.35 0.1 undecidable manual Sg 22 16.872 -0.041 100
IV.NOVE.EHN. 2011-09-09T02:28:47.72 0.3 undecidable manual Pg 63 42.8238 -0.514 65
IV.PRMA.HHE. 2011-09-09T02:28:44.10 0.1 undecidable manual Pg 22 16.872 -0.716 83
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