Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 04-04-2011 and time 07:31:36 (Italy) in region 6 km SE Capitignano (AQ)

A magnitude ML 2.0 earthquake occured in region: 6 km SE Capitignano (AQ), on

  • 04-04-2011 05:31:36 (UTC)
  • 04-04-2011 07:31:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4850, 13.3570 at 11 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
Capitignano AQ 6 665 665
Barete AQ 7 737 1402
Pizzoli AQ 7 4326 5728
Campotosto AQ 8 542 6270
Montereale AQ 10 2581 8851
Cagnano Amiterno AQ 11 1369 10220
Crognaleto TE 12 1297 11517
Scoppito AQ 15 3727 15244
L'Aquila AQ 15 69753 84997
Fano Adriano TE 17 296 85293
Pietracamela TE 17 271 85564
Amatrice RI 17 2657 88221
Borbona RI 19 617 88838
Cortino TE 20 656 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km N of L'Aquila (69753 inhabitants)
35 Km SW of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
97 Km NE of Roma (2864731 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 2.3
ML 2.0 		2011-04-04
05:31:36		 42.485 13.357 11 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1191779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-04-04 05:31:36 ± 0.07
Latitude 42.4850 ± 0.0045
Longitude 13.3570 ± 0.0073
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1191779

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 566
Semi-minor axis of confidence ellipse (meter) 405
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1191779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:17:34

Md:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1191779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:17:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRI.EHN. 2011-04-04T05:32:50.88 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHN. 2011-04-04T05:32:11.96 10.0 undecidable manual Pg 0 0 0
CH.BERNI.HHE. 2011-04-04T05:32:07.00 10.0 undecidable manual Pg 0 0 0
IV.SNTG.HHN. 2011-04-04T05:32:03.69 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHE. 2011-04-04T05:32:01.59 10.0 undecidable manual Pg 0 0 0
IV.SSFR.HHN. 2011-04-04T05:31:57.61 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2011-04-04T05:31:56.88 0.6 undecidable manual Sg 340 64.9905 0.618 39
IV.CESX.HHZ. 2011-04-04T05:31:56.75 10.0 undecidable manual Sg 0 0 0
IV.CESX.HHZ. 2011-04-04T05:31:51.24 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2011-04-04T05:31:50.65 0.1 undecidable manual Sg 104 40.8258 0.846 75
IV.NRCA.HHN. 2011-04-04T05:31:50.50 0.1 undecidable manual Sg 333 43.4232 -0.007 95
IV.INTR.HHE. 2011-04-04T05:31:48.12 0.3 undecidable manual Pg 139 69.0753 -0.378 63
IV.CESI.HHE. 2011-04-04T05:31:48.71 0.3 undecidable manual Pg 328 68.4759 0.314 64
IV.FDMO.HHE. 2011-04-04T05:31:47.63 0.1 undecidable manual Pg 340 64.9905 -0.236 87
IV.FIAM.HHZ. 2011-04-04T05:31:47.39 0.6 undecidable manual Sg 219 31.0467 0.199 47
IV.GUMA.HHE. 2011-04-04T05:31:47.82 0.1 undecidable manual Pg 358 64.1913 0.091 90
IV.OFFI.HHZ. 2011-04-04T05:31:47.37 0.3 undecidable manual Pg 28 56.6988 0.789 56
IV.LNSS.HHZ. 2011-04-04T05:31:46.69 0.1 undecidable manual Sg 297 29.0487 0.042 97
IV.TERO.HHE. 2011-04-04T05:31:45.29 0.1 undecidable manual Sg 53 25.3524 -0.378 91
IV.PTQR.HHN. 2011-04-04T05:31:45.65 0.3 undecidable manual Pg 176 51.5151 -0.125 69
IV.RNI2.HHN. 2011-04-04T05:31:44.31 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2011-04-04T05:31:44.45 0.1 undecidable manual Pg 104 40.8258 0.311 90
IV.NRCA.HHN. 2011-04-04T05:31:44.26 0.1 undecidable manual Pg 333 43.4232 -0.284 90
IV.RM29.EHZ. 2011-04-04T05:31:43.09 0.1 undecidable manual Sg 304 15.1737 0.216 96
IV.RM33.EHZ. 2011-04-04T05:31:42.05 0.1 undecidable manual Sg 283 11.9769 0.051 99
IV.FAGN.HHZ. 2011-04-04T05:31:42.36 0.3 undecidable manual Pg 142 30.5472 -0.199 70
IV.T0104.HHZ. 2011-04-04T05:31:42.56 0.1 undecidable manual Sg 186 13.9749 0.037 99
IV.SMA1.EHZ. 2011-04-04T05:31:42.96 0.1 undecidable manual Sg 354 16.2726 -0.221 95
IV.LNSS.HHZ. 2011-04-04T05:31:42.25 0.1 undecidable manual Pg 297 29.0487 -0.065 96
IV.TERO.HHE. 2011-04-04T05:31:41.22 0.1 undecidable manual Pg 53 25.3524 -0.528 87
IV.FIAM.HHZ. 2011-04-04T05:31:41.91 0.3 undecidable manual Pg 219 31.0467 -0.719 60
IV.RM32.EHZ. 2011-04-04T05:31:41.68 0.1 undecidable manual Sg 331 10.7781 -0.035 100
IV.RM29.EHZ. 2011-04-04T05:31:40.27 0.1 undecidable manual Pg 304 15.1737 0.133 97
IV.SMA1.EHZ. 2011-04-04T05:31:40.19 0.1 undecidable manual Pg 354 16.2726 -0.125 97
IV.RM32.EHZ. 2011-04-04T05:31:39.54 0.1 undecidable manual Pg 331 10.7781 0.072 99
IV.RM33.EHZ. 2011-04-04T05:31:39.73 0.1 undecidable manual Pg 283 11.9769 0.099 99
IV.T0104.HHZ. 2011-04-04T05:31:39.91 0.1 undecidable manual Pg 186 13.9749 -0.024 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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