Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 09-01-2012 and time 00:21:55 (Italy) in region 4 km W Montefortino (FM)

A magnitude ML 2.1 earthquake occured in region: 4 km W Montefortino (FM), on

  • 08-01-2012 23:21:55 (UTC)
  • 09-01-2012 00:21:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9380, 13.2940 at 26 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
Montefortino FM 4 1178 1178
Montemonaco AP 5 604 1782
Amandola FM 7 3629 5411
Bolognola MC 8 142 5553
Comunanza AP 10 3166 8719
Sarnano MC 11 3264 11983
Montegallo AP 11 523 12506
Castelsantangelo sul Nera MC 12 281 12787
Ussita MC 13 444 13231
Acquacanina MC 14 121 13352
Palmiano AP 14 196 13548
Smerillo FM 15 365 13913
Montefalcone Appennino FM 15 424 14337
Gualdo MC 15 815 15152
Fiastra MC 16 559 15711
Monte San Martino MC 16 765 16476
Force AP 16 1354 17830
Visso MC 17 1107 18937
Penna San Giovanni MC 17 1108 20045
Roccafluvione AP 17 2010 22055
Venarotta AP 17 2066 24121
Arquata del Tronto AP 18 1178 25299
Santa Vittoria in Matenano FM 19 1330 26629
San Ginesio MC 19 3498 30127
Cessapalombo MC 19 512 30639
Fiordimonte MC 20 202 30841
Sant'Angelo in Pontano MC 20 1436 32277

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NW of Teramo (54892 inhabitants)
48 Km E of Foligno (57155 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
67 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
78 Km S of Ancona (100861 inhabitants)
84 Km NW of Montesilvano (53738 inhabitants)
92 Km NW of Pescara (121014 inhabitants)
97 Km NW of Chieti (51815 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 2.1 		2012-01-08
23:21:55		 42.938 13.294 26 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1330629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-01-08 23:21:55 ± 0.13
Latitude 42.9380 ± 0.0063
Longitude 13.2940 ± 0.0111
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1330629

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 921
Semi-minor axis of confidence ellipse (meter) 409
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.95418
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1330629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:29:01

Md:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1330629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:29:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.STR3.BHE. 2012-01-08T23:22:34.34 10.0 undecidable manual Pg 0 0 0
IV.RMP.HHZ. 2012-01-08T23:22:28.56 10.0 undecidable manual Pg 0 0 0
IV.ATPC.HHE. 2012-01-08T23:22:23.53 0.3 undecidable manual Sg 312 90.5427 1.03 48
IV.MPAG.EHZ. 2012-01-08T23:22:22.77 0.3 undecidable manual Sg 331 88.0452 0.949 51
IV.PIEI.HHZ. 2012-01-08T23:22:22.74 0.3 undecidable manual Sg 317 90.3429 0.307 62
IV.FRON.EHN. 2012-01-08T23:22:19.91 0.3 undecidable manual Sg 325 79.0653 0.421 62
IV.AOI.HHN. 2012-01-08T23:22:19.86 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHZ. 2012-01-08T23:22:18.36 0.3 undecidable manual Sg 300 71.9724 0.701 57
IV.SSFR.HHZ. 2012-01-08T23:22:17.19 0.1 undecidable manual Sg 323 69.0753 0.288 87
IV.ARVD.HHN. 2012-01-08T23:22:17.30 0.1 undecidable manual Sg 335 68.376 0.579 82
IV.ATCC.EHZ. 2012-01-08T23:22:14.65 0.1 undecidable manual Sg 298 59.6958 0.153 91
IV.BADI.EHN. 2012-01-08T23:22:13.60 0.3 undecidable manual Pg 307 105.9162 0.192 62
IV.FSSB.HHN. 2012-01-08T23:22:11.54 0.3 undecidable manual Pg 334 93.6396 0.005 66
IV.ATTE.HHN. 2012-01-08T23:22:11.35 10.0 undecidable manual Pg 0 0 0
IV.MPAG.EHZ. 2012-01-08T23:22:10.41 0.1 undecidable manual Pg 331 88.0452 -0.282 83
IV.SNTG.HHZ. 2012-01-08T23:22:10.55 0.3 undecidable manual Sg 321 45.3213 -0.363 66
IV.PIEI.HHZ. 2012-01-08T23:22:10.54 0.1 undecidable manual Pg 317 90.3429 -0.502 79
IV.ATPC.HHE. 2012-01-08T23:22:10.90 0.3 undecidable manual Pg 312 90.5427 -0.181 64
IV.FAGN.HHN. 2012-01-08T23:22:09.56 0.1 undecidable manual Pg 162 78.2661 0.346 83
IV.SMA1.EHZ. 2012-01-08T23:22:08.82 0.1 undecidable manual Sg 174 34.2435 0.538 85
IV.AOI.HHN. 2012-01-08T23:22:08.95 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2012-01-08T23:22:08.13 0.1 undecidable manual Pg 300 71.9724 -0.151 89
IV.FRON.EHN. 2012-01-08T23:22:08.84 0.1 undecidable manual Pg 325 79.0653 -0.495 81
IV.ARVD.HHN. 2012-01-08T23:22:07.42 0.1 undecidable manual Pg 335 68.376 -0.319 86
IV.SSFR.HHZ. 2012-01-08T23:22:07.48 0.1 undecidable manual Pg 323 69.0753 -0.369 85
IV.CESI.HHZ. 2012-01-08T23:22:07.91 0.1 undecidable manual Sg 283 32.4453 0.029 98
IV.ATCC.EHZ. 2012-01-08T23:22:06.19 0.1 undecidable manual Pg 298 59.6958 -0.27 88
IV.NRCA.HHZ. 2012-01-08T23:22:05.00 0.1 undecidable manual Sg 232 18.6702 -0.103 99
IV.GUMA.HHE. 2012-01-08T23:22:04.62 0.1 undecidable manual Sg 14 14.2746 0.2 99
IV.FDMO.HHE. 2012-01-08T23:22:04.82 0.3 undecidable manual Sg 303 20.0688 -0.523 66
IV.SNTG.HHZ. 2012-01-08T23:22:03.98 0.1 undecidable manual Pg 321 45.3213 -0.411 88
IV.CESI.HHZ. 2012-01-08T23:22:02.47 0.1 undecidable manual Pg 283 32.4453 -0.168 95
IV.SMA1.EHZ. 2012-01-08T23:22:02.94 0.1 undecidable manual Pg 174 34.2435 0.067 95
IV.GUMA.HHE. 2012-01-08T23:22:00.60 0.1 undecidable manual Pg 14 14.2746 -0.037 100
IV.FDMO.HHE. 2012-01-08T23:22:00.77 0.1 undecidable manual Pg 303 20.0688 -0.4 92
IV.NRCA.HHZ. 2012-01-08T23:22:00.94 0.1 undecidable manual Pg 232 18.6702 -0.097 99
IV.FIR.HHE. 2012-01-08T23:21:44.36 10.0 undecidable manual Pg 0 0 0
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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