Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.7 on date 07-06-2012 and time 19:11:34 (Italy) in region 4 km SW Appignano del Tronto (AP)

A magnitude ML 2.7 earthquake occured in region: 4 km SW Appignano del Tronto (AP), on

  • 07-06-2012 17:11:34 (UTC)
  • 07-06-2012 19:11:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8720, 13.6290 at 25 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
Appignano del Tronto AP 4 1785 1785
Ascoli Piceno AP 5 49407 51192
Folignano AP 6 9241 60433
Maltignano AP 7 2401 62834
Castel di Lama AP 7 8634 71468
Castignano AP 8 2796 74264
Castorano AP 9 2380 76644
Sant'Egidio alla Vibrata TE 9 9811 86455
Offida AP 9 5058 91513
Colli del Tronto AP 10 3668 95181
Ancarano TE 10 1857 97038
Rotella AP 11 906 97944
Venarotta AP 11 2066 100010
Civitella del Tronto TE 11 5116 105126
Montedinove AP 12 488 105614
Spinetoli AP 12 7215 112829
Roccafluvione AP 13 2010 114839
Montalto delle Marche AP 13 2122 116961
Torano Nuovo TE 13 1611 118572
Cossignano AP 14 978 119550
Monsampolo del Tronto AP 14 4611 124161
Palmiano AP 14 196 124357
Force AP 15 1354 125711
Controguerra TE 16 2436 128147
Nereto TE 17 5242 133389
Campli TE 17 7209 140598
Sant'Omero TE 17 5243 145841
Acquaviva Picena AP 17 3831 149672
Corropoli TE 18 5045 154717
Monteprandone AP 18 12655 167372
Ortezzano FM 18 774 168146
Monte Rinaldo FM 18 379 168525
Montelparo FM 18 778 169303
Ripatransone AP 18 4309 173612
Valle Castellana TE 18 977 174589
Carassai AP 19 1100 175689
Montefalcone Appennino FM 19 424 176113
Colonnella TE 20 3734 179847
Santa Vittoria in Matenano FM 20 1330 181177
Monte Vidon Combatte FM 20 433 181610
Comunanza AP 20 3166 184776

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Teramo (54892 inhabitants)
58 Km NW of Montesilvano (53738 inhabitants)
61 Km NE of L'Aquila (69753 inhabitants)
66 Km NW of Pescara (121014 inhabitants)
73 Km NW of Chieti (51815 inhabitants)
76 Km E of Foligno (57155 inhabitants)
83 Km S of Ancona (100861 inhabitants)
87 Km E of Terni (111501 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.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is 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
Reviewed
Rev100 		ML 2.5 2012-06-07
17:11:34		 42.8658 13.6298 25 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 1590791
Bulletin
Rev1000 		ML 2.7 2012-06-07
17:11:34		 42.8718 13.6288 25 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 2757741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-06-07 17:11:34 ± 0.14
Latitude 42.8718 ± 0.0063
Longitude 13.6288 ± 0.0086
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 2757741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 703
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.88313
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 2757741
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:42:29

ML:2.5

Field Value
Value 2.5
Uncertainty 0.4
Num. used stations 0
Type of magnitude ML
Reference to an origin 1590791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-06-07 17:18:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2012-06-07T17:11:55.36 0.6 undecidable manual S 328 65.9895 105 0.55 43
IV.CESI.HHZ. 2012-06-07T17:11:54.18 0.6 undecidable manual S 284 60.5949 106 0.74 40
IV.VCEL.EHZ. 2012-06-07T17:11:53.22 0.6 undecidable manual S 162 55.6998 108 1.04 34
IV.INTR.HHZ. 2012-06-07T17:11:50.82 0.6 undecidable manual P 167 98.0241 99 -0.14 44
IV.FDMO.HHZ. 2012-06-07T17:11:50.28 0.3 undecidable manual S 293 47.619 111 0.14 72
IV.ARVD.HHZ. 2012-06-07T17:11:49.68 0.6 undecidable manual P 322 88.9443 101 0.1 45
IV.NRCA.HNZ. 2012-06-07T17:11:49.19 0.6 undecidable manual S 264 42.0246 115 0.41 46
IV.ATCC.EHZ. 2012-06-07T17:11:49.47 0.3 undecidable manual P 294 87.4458 101 0.13 67
IV.CAMP.HHZ. 2012-06-07T17:11:48.58 0.6 undecidable manual S 206 41.3253 115 -0.03 50
IV.ASSB.HHZ. 2012-06-07T17:11:48.39 0.6 undecidable manual P 284 80.9523 102 0.02 46
IV.SMA1.EHZ. 2012-06-07T17:11:47.46 0.6 undecidable manual S 222 35.9418 119 0.15 49
IV.GUMA.HHZ. 2012-06-07T17:11:46.59 0.6 undecidable manual S 312 31.8459 122 0.2 49
IV.TERO.HHZ. 2012-06-07T17:11:45.28 0.6 undecidable manual S 184 27.75 127 -0.19 50
IV.CESI.HHZ. 2012-06-07T17:11:45.31 0.1 negative manual P 284 60.5949 106 -0.02 97
IV.TRTR.HHZ. 2012-06-07T17:11:45.76 0.6 undecidable manual S 107 24.2535 131 1.01 38
IV.CING.HHZ. 2012-06-07T17:11:45.77 0.3 undecidable manual P 328 65.9895 105 -0.35 67
IV.VCEL.EHZ. 2012-06-07T17:11:44.60 0.1 undecidable manual P 162 55.6998 108 0 97
IV.FDMO.HHZ. 2012-06-07T17:11:43.14 0.1 negative manual P 293 47.619 111 -0.28 94
IV.OFFI.HHZ. 2012-06-07T17:11:42.02 0.6 undecidable manual S 33 8.3805 160 -0.27 50
IV.CADA.HNZ. 2012-06-07T17:11:42.16 0.6 undecidable manual P 17 37.3293 118 0.18 49
IV.CAMP.HHZ. 2012-06-07T17:11:42.31 0.1 positive manual P 206 41.3253 115 -0.23 96
IV.NRCA.HNZ. 2012-06-07T17:11:42.54 0.3 undecidable manual P 264 42.0246 115 -0.1 74
IV.GUMA.HHZ. 2012-06-07T17:11:41.09 0.1 undecidable manual P 312 31.8459 122 -0.16 99
IV.SMA1.EHZ. 2012-06-07T17:11:41.65 0.1 undecidable manual P 222 35.9418 119 -0.14 99
IV.TERO.HHZ. 2012-06-07T17:11:40.40 0.1 positive manual P 184 27.75 127 -0.32 97
IV.TRTR.HHZ. 2012-06-07T17:11:40.47 0.1 undecidable manual P 107 24.2535 131 0.16 100
IV.OFFI.HHZ. 2012-06-07T17:11:38.50 0.1 positive manual P 33 8.3805 160 -0.39 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AOI.HHN. ML:2.4 0.000324 0.6 AML other m 2012-06-07T17:12:02.00
IV.ARRO.EHN. ML:2.3 0.00026250000000000004 0.52 AML other m 2012-06-07T17:12:04.79
IV.FAGN.HHE. ML:2.6 0.0007190000000000001 0.42 AML other m 2012-06-07T17:12:03.77
IV.FAGN.HHN. ML:2.6 0.0006385 0.48 AML other m 2012-06-07T17:12:10.13
IV.GUMA.HHE. ML:3.0 0.00342 0.44 AML other m 2012-06-07T17:11:52.17
IV.GUMA.HHN. ML:3.0 0.0033200000000000005 0.5 AML other m 2012-06-07T17:11:51.86
IV.TRTR.HHE. ML:2.7 0.001935 0.62 AML other m 2012-06-07T17:11:53.56
IV.TRTR.HHN. ML:2.8 0.0025150000000000003 0.42 AML other m 2012-06-07T17:11:55.32
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, /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