Earthquake with magnitude of M 0.0 on date 07-12-2009 and time 23:34:59 (Italy) in region 3 km S Force (AP)

A magnitude M 0.0 earthquake occured in region: 3 km S Force (AP), on

  • 07-12-2009 22:34:59 (UTC)
  • 07-12-2009 23:34:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.94, 13.5 at 10 km depth.

The earthquake was located by: Fonte esterna non nota.

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
Force AP 3 1354 1354
Rotella AP 5 906 2260
Palmiano AP 6 196 2456
Montefalcone Appennino FM 6 424 2880
Venarotta AP 7 2066 4946
Comunanza AP 7 3166 8112
Montedinove AP 8 488 8600
Smerillo FM 9 365 8965
Roccafluvione AP 9 2010 10975
Santa Vittoria in Matenano FM 9 1330 12305
Montelparo FM 9 778 13083
Castignano AP 10 2796 15879
Montalto delle Marche AP 10 2122 18001
Monte San Martino MC 11 765 18766
Ascoli Piceno AP 12 49407 68173
Monte Rinaldo FM 12 379 68552
Monteleone di Fermo FM 12 395 68947
Amandola FM 13 3629 72576
Montefortino FM 13 1178 73754
Ortezzano FM 14 774 74528
Appignano del Tronto AP 14 1785 76313
Penna San Giovanni MC 14 1108 77421
Montemonaco AP 15 604 78025
Monsampietro Morico FM 15 659 78684
Montottone FM 15 979 79663
Offida AP 16 5058 84721
Servigliano FM 16 2336 87057
Cossignano AP 16 978 88035
Monte Vidon Combatte FM 16 433 88468
Folignano AP 17 9241 97709
Montegallo AP 17 523 98232
Belmonte Piceno FM 17 646 98878
Carassai AP 18 1100 99978
Falerone FM 19 3337 103315
Castel di Lama AP 19 8634 111949
Petritoli FM 19 2335 114284
Castorano AP 19 2380 116664
Sarnano MC 19 3264 119928
Maltignano AP 19 2401 122329
Gualdo MC 19 815 123144
Sant'Angelo in Pontano MC 20 1436 124580
Monte Giberto FM 20 801 125381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of Teramo (54892 inhabitants)
65 Km E of Foligno (57155 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
71 Km NW of Montesilvano (53738 inhabitants)
75 Km S of Ancona (100861 inhabitants)
79 Km NW of Pescara (121014 inhabitants)
81 Km NE of Terni (111501 inhabitants)
85 Km NW of Chieti (51815 inhabitants)
92 Km E of Perugia (166134 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
M 0.0 2009-12-07
22:34:59
42.94 13.5 10 2014-10-15
07:39:12
Fonte esterna non nota 997369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-12-07 22:34:59
Latitude 42.9400
Longitude 13.5000
Depth (km) 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> UNKNOWN
Event type earthquake
Origin ID 997369

Uncertainty

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

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 4
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 2
Magnitude information

M:0

Field Value
Value 0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 997369
Agency INGV
Autore Fonte esterna non nota
Time of creation (UTC) 2014-10-15 07:39:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T0107.HLN. 2009-12-07T22:35:10.67 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHN. 2009-12-07T22:35:02.95 0.1 undecidable manual Sg 0 0 0
IV.SMA1.EHN. 2009-12-07T22:35:01.98 0.3 undecidable manual Sg 0 0 0
IV.NRCA.HHN. 2009-12-07T22:35:00.14 0.1 undecidable manual Pg 0 0 0
IV.SMA1.EHN. 2009-12-07T22:34:59.61 0.1 undecidable manual Pg 0 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. Md:0 11.4 END duration s
IV.SMA1.EHE. ML:0 3.0E-5 0.1 AML other m 2009-12-07T22:34:59.61
IV.NRCA.HHN. Md:0 10.9 END duration s
IV.NRCA.HHE. ML:0 5.5E-5 0.16 AML other m 2009-12-07T22:35:00.14
IV.T0107.HLN. Md:0 9 END duration s
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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