Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 06-12-2011 and time 10:08:49 (UTC) in region 2 km SE San Ginesio (MC)

A magnitude ML 2.1 earthquake occured in region: 2 km SE San Ginesio (MC), on

  • 06-12-2011 10:08:49 (UTC)
  • 06-12-2011 11:08:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0990, 13.3320 at 24 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
San Ginesio MC 2 3498 3498
Gualdo MC 4 815 4313
Sant'Angelo in Pontano MC 5 1436 5749
Ripe San Ginesio MC 6 852 6601
Cessapalombo MC 6 512 7113
Camporotondo di Fiastrone MC 7 563 7676
Sarnano MC 7 3264 10940
Colmurano MC 8 1263 12203
Penna San Giovanni MC 9 1108 13311
Caldarola MC 10 1823 15134
Loro Piceno MC 10 2401 17535
Belforte del Chienti MC 11 1886 19421
Monte San Martino MC 12 765 20186
Falerone FM 12 3337 23523
Urbisaglia MC 12 2628 26151
Montappone FM 12 1682 27833
Monte Vidon Corrado FM 13 731 28564
Tolentino MC 13 20069 48633
Massa Fermana FM 13 963 49596
Servigliano FM 13 2336 51932
Amandola FM 13 3629 55561
Smerillo FM 14 365 55926
Bolognola MC 14 142 56068
Serrapetrona MC 15 966 57034
Acquacanina MC 15 121 57155
Mogliano MC 16 4696 61851
Fiastra MC 16 559 62410
Santa Vittoria in Matenano FM 16 1330 63740
Montefalcone Appennino FM 16 424 64164
Belmonte Piceno FM 17 646 64810
Comunanza AP 17 3166 67976
Monteleone di Fermo FM 17 395 68371
Montegiorgio FM 17 6851 75222
Montefortino FM 17 1178 76400
Petriolo MC 18 1998 78398
Monsampietro Morico FM 19 659 79057
Montelparo FM 19 778 79835
Pollenza MC 19 6618 86453
San Severino Marche MC 19 12726 99179
Francavilla d'Ete FM 20 964 100143
Force AP 20 1354 101497

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
60 Km S of Ancona (100861 inhabitants)
77 Km E of Perugia (166134 inhabitants)
82 Km NE of Terni (111501 inhabitants)
83 Km N of L'Aquila (69753 inhabitants)
87 Km SE of Fano (60888 inhabitants)
93 Km NW of Montesilvano (53738 inhabitants)
96 Km SE of Pesaro (94582 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 1.6
ML 2.1 		2011-12-06
10:08:49		 43.099 13.332 24 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1319099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-12-06 10:08:49 ± 0.08
Latitude 43.0990 ± 0.0027
Longitude 13.3320 ± 0.0037
Depth (km) 24 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1319099

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 323
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 424.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 286
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.05
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30937
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1319099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:13:00

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1319099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:13:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHN. 2011-12-06T10:09:09.72 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2011-12-06T10:09:01.87 0.1 undecidable manual Sg 211 34.3434 0.027 95
IV.FDMO.HHE. 2011-12-06T10:08:58.93 0.1 undecidable manual Sg 251 21.0678 -0.015 97
IV.GUMA.HHE. 2011-12-06T10:08:56.68 0.1 undecidable manual Sg 177 3.996 -0.016 100
IV.NRCA.HHZ. 2011-12-06T10:08:56.50 0.1 undecidable manual Pg 211 34.3434 -0.051 94
IV.FDMO.HHE. 2011-12-06T10:08:54.90 0.1 undecidable manual Pg 251 21.0678 0.022 97
IV.GUMA.HHE. 2011-12-06T10:08:53.60 0.1 undecidable manual Pg 177 3.996 0.023 100
IV.MCIV.HHZ. 2011-12-06T10:08:28.44 10.0 undecidable manual Pg 0 0 0
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