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) 42.938, 13.294 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.

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

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Significant earthquakes since 1000 AD until 2006

Significant earthquakes since 1000 AD until 2006

This map shows the epicenters of the historical earthquakes catalogue CPT11 (Catalogo Parametrico dei Terremoti Italiani, 2011 version) with estimated magnitude ≥ 5.0 since 1000 AD until 2006. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
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
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 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 0.8157 1.03 48
IV.PIEI.HHZ. 2012-01-08T23:22:22.74 0.3 undecidable manual Sg 317 0.8139 0.307 62
IV.MPAG.EHZ. 2012-01-08T23:22:22.77 0.3 undecidable manual Sg 331 0.7932 0.949 51
IV.FRON.EHN. 2012-01-08T23:22:19.91 0.3 undecidable manual Sg 325 0.7123 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 0.6484 0.701 57
IV.SSFR.HHZ. 2012-01-08T23:22:17.19 0.1 undecidable manual Sg 323 0.6223 0.288 87
IV.ARVD.HHN. 2012-01-08T23:22:17.30 0.1 undecidable manual Sg 335 0.616 0.579 82
IV.ATCC.EHZ. 2012-01-08T23:22:14.65 0.1 undecidable manual Sg 298 0.5378 0.153 91
IV.BADI.EHN. 2012-01-08T23:22:13.60 0.3 undecidable manual Pg 307 0.9542 0.192 62
IV.FSSB.HHN. 2012-01-08T23:22:11.54 0.3 undecidable manual Pg 334 0.8436 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 0.7932 -0.282 83
IV.SNTG.HHZ. 2012-01-08T23:22:10.55 0.3 undecidable manual Sg 321 0.4083 -0.363 66
IV.PIEI.HHZ. 2012-01-08T23:22:10.54 0.1 undecidable manual Pg 317 0.8139 -0.502 79
IV.ATPC.HHE. 2012-01-08T23:22:10.90 0.3 undecidable manual Pg 312 0.8157 -0.181 64
IV.FAGN.HHN. 2012-01-08T23:22:09.56 0.1 undecidable manual Pg 162 0.7051 0.346 83
IV.FRON.EHN. 2012-01-08T23:22:08.84 0.1 undecidable manual Pg 325 0.7123 -0.495 81
IV.SMA1.EHZ. 2012-01-08T23:22:08.82 0.1 undecidable manual Sg 174 0.3085 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 0.6484 -0.151 89
IV.ARVD.HHN. 2012-01-08T23:22:07.42 0.1 undecidable manual Pg 335 0.616 -0.319 86
IV.SSFR.HHZ. 2012-01-08T23:22:07.48 0.1 undecidable manual Pg 323 0.6223 -0.369 85
IV.CESI.HHZ. 2012-01-08T23:22:07.91 0.1 undecidable manual Sg 283 0.2923 0.029 98
IV.ATCC.EHZ. 2012-01-08T23:22:06.19 0.1 undecidable manual Pg 298 0.5378 -0.27 88
IV.NRCA.HHZ. 2012-01-08T23:22:05.00 0.1 undecidable manual Sg 232 0.1682 -0.103 99
IV.GUMA.HHE. 2012-01-08T23:22:04.62 0.1 undecidable manual Sg 14 0.1286 0.2 99
IV.FDMO.HHE. 2012-01-08T23:22:04.82 0.3 undecidable manual Sg 303 0.1808 -0.523 66
IV.SNTG.HHZ. 2012-01-08T23:22:03.98 0.1 undecidable manual Pg 321 0.4083 -0.411 88
IV.CESI.HHZ. 2012-01-08T23:22:02.47 0.1 undecidable manual Pg 283 0.2923 -0.168 95
IV.SMA1.EHZ. 2012-01-08T23:22:02.94 0.1 undecidable manual Pg 174 0.3085 0.067 95
IV.NRCA.HHZ. 2012-01-08T23:22:00.94 0.1 undecidable manual Pg 232 0.1682 -0.097 99
IV.GUMA.HHE. 2012-01-08T23:22:00.60 0.1 undecidable manual Pg 14 0.1286 -0.037 100
IV.FDMO.HHE. 2012-01-08T23:22:00.77 0.1 undecidable manual Pg 303 0.1808 -0.4 92
IV.FIR.HHE. 2012-01-08T23:21:44.36 10.0 undecidable manual Pg 0 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHN. ML:2.3 0.00095 0.35 AML other m 2012-01-08T23:22:00.60
IV.GUMA.HHE. Md:1.5 14 END duration s
IV.NRCA.HHN. ML:2.6 0.0021 0.13 AML other m 2012-01-08T23:22:00.94
IV.NRCA.HHE. ML:2.6 0.0021 0.13 AML other m 2012-01-08T23:22:00.94
IV.CESI.HHN. ML:2.1 0.000305 0.3 AML other m 2012-01-08T23:22:02.47
IV.CESI.HHE. ML:2.1 0.00053 0.3 AML other m 2012-01-08T23:22:02.47
IV.SMA1.EHN. ML:1.9 0.000275 0.18 AML other m 2012-01-08T23:22:02.94
IV.SMA1.EHE. ML:1.9 0.000265 0.24 AML other m 2012-01-08T23:22:02.94
IV.SNTG.HHN. ML:2 0.0003 0.28 AML other m 2012-01-08T23:22:03.98
IV.SNTG.HHE. ML:2 0.0002 0.12 AML other m 2012-01-08T23:22:03.98
IV.ATCC.EHN. ML:2.1 0.00024 0.2 AML other m 2012-01-08T23:22:06.19
IV.ATCC.EHE. ML:2.1 0.00025 0.26 AML other m 2012-01-08T23:22:06.19
IV.ARVD.HHN. Md:2.3 33.6 END duration s
IV.ARVD.HHE. ML:1.7 9.0E-5 0.26 AML other m 2012-01-08T23:22:07.42
IV.SSFR.HHN. ML:2.6 0.000335 0.2 AML other m 2012-01-08T23:22:07.48
IV.SSFR.HHE. ML:2.6 0.000975 0.2 AML other m 2012-01-08T23:22:07.48
IV.MURB.HHN. ML:2.4 0.00026 0.24 AML other m 2012-01-08T23:22:08.13
IV.MURB.HHE. ML:2.4 0.000455 0.3 AML other m 2012-01-08T23:22:08.13
IV.FRON.EHN. Md:2.5 40.2 END duration s
IV.FRON.EHE. ML:1.8 7.5E-5 0.22 AML other m 2012-01-08T23:22:08.84
IV.FAGN.HHN. Md:2.4 39.5 END duration s
IV.FAGN.HHE. ML:2.1 0.000165 0.44 AML other m 2012-01-08T23:22:09.56
IV.MPAG.EHN. ML:1.7 5.0E-5 0.8 AML other m 2012-01-08T23:22:10.41
IV.MPAG.EHE. ML:1.7 6.5E-5 0.54 AML other m 2012-01-08T23:22:10.41
IV.ATPC.HHN. ML:2.1 0.00015 0.26 AML other m 2012-01-08T23:22:10.90
IV.ATPC.HHE. Md:2.5 42.7 END duration s
IV.FSSB.HHN. Md:2.5 41.6 END duration s
IV.FSSB.HHE. ML:2.2 0.000165 0.24 AML other m 2012-01-08T23:22:11.54
IV.FIR.HHE. Md:0 24 END duration s
IV.FDMO.HHE. Md:2 26.3 END duration s
IV.NRCA.HHZ. Md:2.3 37 END duration s
IV.CESI.HHZ. Md:2.1 27 END duration s
IV.SMA1.EHZ. Md:2.4 39 END duration s
IV.SNTG.HHZ. Md:2.1 27 END duration s
IV.ATCC.EHZ. Md:2.3 33.1 END duration s
IV.SSFR.HHZ. Md:2.3 31 END duration s
IV.MURB.HHZ. Md:2.4 36.2 END duration s
IV.AOI.HHN. Md:0 25.2 END duration s
IV.MPAG.EHZ. Md:2.4 34.2 END duration s
IV.PIEI.HHZ. Md:2.2 25.5 END duration s
IV.ATTE.HHN. Md:0 26.3 END duration s
IV.BADI.EHN. Md:2.3 29.5 END duration s
IV.RMP.HHZ. Md:0 13 END duration s
IV.STR3.BHE. Md:0 12 END duration s
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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