Earthquake with magnitude of ML 3.1 on date 09-04-2012 and time 01:39:16 (Italy) in region SW Montappone (FM)

A magnitude ML 3.1 earthquake occured in region: SW Montappone (FM), on

  • 08-04-2012 23:39:16 (UTC)
  • 09-04-2012 01:39:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1340, 13.4680 at 18 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
Montappone FM 0 1682 1682
Monte Vidon Corrado FM 2 731 2413
Massa Fermana FM 2 963 3376
Falerone FM 3 3337 6713
Loro Piceno MC 6 2401 9114
Montegiorgio FM 6 6851 15965
Mogliano MC 6 4696 20661
Servigliano FM 6 2336 22997
Sant'Angelo in Pontano MC 7 1436 24433
Belmonte Piceno FM 7 646 25079
Ripe San Ginesio MC 8 852 25931
Francavilla d'Ete FM 9 964 26895
Penna San Giovanni MC 9 1108 28003
Colmurano MC 10 1263 29266
Magliano di Tenna FM 10 1452 30718
Petriolo MC 10 1998 32716
Monsampietro Morico FM 10 659 33375
Urbisaglia MC 10 2628 36003
Rapagnano FM 11 2145 38148
Monteleone di Fermo FM 11 395 38543
Grottazzolina FM 11 3398 41941
Monte San Pietrangeli FM 11 2458 44399
Monte San Martino MC 12 765 45164
Montottone FM 12 979 46143
San Ginesio MC 13 3498 49641
Torre San Patrizio FM 13 2048 51689
Santa Vittoria in Matenano FM 13 1330 53019
Gualdo MC 13 815 53834
Corridonia MC 13 15430 69264
Montelparo FM 14 778 70042
Monte Giberto FM 14 801 70843
Smerillo FM 14 365 71208
Monte Rinaldo FM 15 379 71587
Monte San Giusto MC 15 8191 79778
Ponzano di Fermo FM 16 1674 81452
Ortezzano FM 16 774 82226
Montefalcone Appennino FM 16 424 82650
Monte Vidon Combatte FM 16 433 83083
Camporotondo di Fiastrone MC 16 563 83646
Petritoli FM 17 2335 85981
Tolentino MC 17 20069 106050
Cessapalombo MC 17 512 106562
Sarnano MC 17 3264 109826
Montegranaro FM 18 12990 122816
Pollenza MC 18 6618 129434
Monte Urano FM 18 8353 137787
Macerata MC 19 42473 180260
Belforte del Chienti MC 19 1886 182146
Force AP 19 1354 183500
Amandola FM 19 3629 187129
Caldarola MC 20 1823 188952
Montalto delle Marche AP 20 2122 191074
Comunanza AP 20 3166 194240

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km S of Ancona (100861 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
65 Km E of Foligno (57155 inhabitants)
87 Km SE of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
88 Km E of Perugia (166134 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
92 Km NE of Terni (111501 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
97 Km SE of Pesaro (94582 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
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
ML 3.1 2012-04-08
23:39:16
43.134 13.468 18 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1357249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-04-08 23:39:16 ± 0.08
Latitude 43.1340 ± 0.0036
Longitude 13.4680 ± 0.0074
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1357249

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 601
Semi-minor axis of confidence ellipse (meter) 242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 721.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 80
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.23747
Number of stations at which the event was observed 62
Number of stations from which data was used for origin computation 31
Magnitude information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 1357249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 03:06:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.RISI.HHZ. 2012-04-08T23:40:18.61 10.0 undecidable manual Pn 0 0 0
IV.MELA.HHZ. 2012-04-08T23:40:13.86 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHN. 2012-04-08T23:40:12.35 10.0 undecidable manual Pn 0 0 0
IV.IMOL.EHN. 2012-04-08T23:40:12.94 10.0 undecidable manual Pn 0 0 0
IV.TEOL.HHE. 2012-04-08T23:40:11.56 10.0 undecidable manual Sn 0 0 0
IV.MABI.HHZ. 2012-04-08T23:40:11.31 10.0 undecidable manual Pn 0 0 0
IV.TEOL.HHE. 2012-04-08T23:40:08.47 10.0 undecidable manual Pn 0 0 0
IV.MA9.HHN. 2012-04-08T23:40:07.65 10.0 undecidable manual Pn 0 0 0
IV.STAL.HHN. 2012-04-08T23:40:06.73 10.0 undecidable manual Pn 0 0 0
IV.CTI.HHN. 2012-04-08T23:40:06.42 10.0 undecidable manual Pn 0 0 0
IV.ASQU.HHN. 2012-04-08T23:40:04.61 10.0 undecidable manual Pn 0 0 0
IV.MMME.HHZ. 2012-04-08T23:40:01.17 10.0 undecidable manual Pn 0 0 0
IV.MTCE.HHN. 2012-04-08T23:39:58.29 10.0 undecidable manual Sg 0 0 0
IV.SACS.HHN. 2012-04-08T23:39:56.56 10.0 undecidable manual Pn 0 0 0
IV.USI.HHN. 2012-04-08T23:39:55.86 10.0 undecidable manual Pn 0 0 0
IV.PTF.SHN. 2012-04-08T23:39:55.43 10.0 undecidable manual Sn 0 0 0
IV.SEI.SHN. 2012-04-08T23:39:52.84 10.0 undecidable manual Pn 0 0 0
IV.PTF.SHN. 2012-04-08T23:39:51.86 10.0 undecidable manual Pn 0 0 0
IV.PESA.HHN. 2012-04-08T23:39:50.33 10.0 undecidable manual Pn 0 0 0
IV.NOV.HHE. 2012-04-08T23:39:49.45 10.0 undecidable manual Pg 0 0 0
IV.TRIF.HHE. 2012-04-08T23:39:49.91 10.0 undecidable manual Pn 0 0 0
IV.SAMA.HHE. 2012-04-08T23:39:48.40 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2012-04-08T23:39:46.69 0.6 undecidable manual Sg 197 100.2219 0.879 33
IV.GUAR.HHN. 2012-04-08T23:39:44.04 10.0 undecidable manual Pg 0 0 0
IV.RMP.HHZ. 2012-04-08T23:39:43.65 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHN. 2012-04-08T23:39:43.95 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2012-04-08T23:39:43.84 10.0 undecidable manual Sg 0 0 0
IV.RAVA.EHE. 2012-04-08T23:39:43.77 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2012-04-08T23:39:42.08 10.0 undecidable manual Pg 0 0 0
IV.MTCE.HHN. 2012-04-08T23:39:41.41 10.0 undecidable manual Pg 0 0 0
IV.FSSB.HHZ. 2012-04-08T23:39:41.59 1.0 undecidable manual Sg 318 83.3499 0.28 21
IV.LPEL.HHN. 2012-04-08T23:39:40.49 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2012-04-08T23:39:40.71 0.6 undecidable manual Sg 281 77.5668 0.923 34
IV.MPAG.EHN. 2012-04-08T23:39:40.65 0.6 undecidable manual Sg 314 79.2651 0.424 42
IV.INTR.HHZ. 2012-04-08T23:39:38.01 0.6 undecidable manual Pg 164 129.5703 0.06 41
IV.CERT.HHE. 2012-04-08T23:39:38.94 0.6 undecidable manual Pg 197 137.3625 -0.207 39
IV.CAFR.HHE. 2012-04-08T23:39:38.34 10.0 undecidable manual Pg 0 0 0
BA.PZUN.HHZ. 2012-04-08T23:39:37.34 10.0 undecidable manual Pg 0 0 0
IV.ATCC.EHZ. 2012-04-08T23:39:37.68 0.3 undecidable manual Sg 275 67.1772 0.645 58
IV.CPGN.EHZ. 2012-04-08T23:39:37.99 10.0 undecidable manual Pg 0 0 0
IV.PTQR.HHN. 2012-04-08T23:39:37.02 1.0 undecidable manual Pg 183 123.4875 0.007 21
IV.CAFI.HHN. 2012-04-08T23:39:37.60 0.3 undecidable manual Pg 281 123.2877 0.621 54
IV.PARC.HHZ. 2012-04-08T23:39:36.12 0.6 undecidable manual Pg 300 114.2967 0.508 38
IV.ATMC.EHN. 2012-04-08T23:39:35.00 0.3 undecidable manual Pg 289 108.6135 0.27 61
IV.ARVD.HHZ. 2012-04-08T23:39:34.87 0.3 undecidable manual Sg 314 58.5969 0.112 69
IV.MGAB.HHZ. 2012-04-08T23:39:34.22 1.0 undecidable manual Pg 258 112.5984 -1.128 15
IV.SMA1.EHN. 2012-04-08T23:39:34.82 0.3 undecidable manual Sg 191 56.8986 0.52 63
IV.BADI.EHZ. 2012-04-08T23:39:34.73 0.3 undecidable manual Pg 293 107.115 0.222 62
IV.FAGN.HHN. 2012-04-08T23:39:33.05 0.3 undecidable manual Pg 174 96.8253 0.137 64
IV.FIAM.HHZ. 2012-04-08T23:39:33.23 0.3 undecidable manual Pg 197 100.2219 -0.212 63
IV.AOI.HHZ. 2012-04-08T23:39:32.49 0.3 undecidable manual Sg 13 47.4192 0.681 63
IV.ATPC.HHE. 2012-04-08T23:39:31.89 0.3 undecidable manual Pg 296 90.1431 -0.006 66
IV.PIEI.HHZ. 2012-04-08T23:39:31.26 0.1 undecidable manual Pg 301 87.4458 -0.218 85
IV.CESI.HHZ. 2012-04-08T23:39:31.81 0.3 undecidable manual Sg 253 47.8188 -0.1 72
IV.ATVO.HHZ. 2012-04-08T23:39:31.76 0.1 undecidable manual Pg 288 90.0432 -0.113 87
IV.T0104.HHZ. 2012-04-08T23:39:31.22 0.3 undecidable manual Pg 187 86.5467 -0.114 66
IV.VCEL.EHZ. 2012-04-08T23:39:31.95 0.3 undecidable manual Pg 160 87.4458 0.473 61
MN.AQU.HHE. 2012-04-08T23:39:31.30 0.1 undecidable manual Pg 183 86.6466 -0.061 88
IV.NRCA.HHZ. 2012-04-08T23:39:30.27 0.3 undecidable manual Sg 221 43.9227 -0.629 64
IV.MPAG.EHN. 2012-04-08T23:39:30.26 0.3 undecidable manual Pg 314 79.2651 0.044 68
IV.FSSB.HHZ. 2012-04-08T23:39:30.84 0.3 undecidable manual Pg 318 83.3499 0.001 67
IV.SNTG.HHZ. 2012-04-08T23:39:30.99 0.3 undecidable manual Sg 288 44.7219 -0.099 71
IV.SENI.EHN. 2012-04-08T23:39:29.35 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2012-04-08T23:39:29.96 0.1 undecidable manual Pg 281 77.5668 -0.001 91
IV.CAMP.HHN. 2012-04-08T23:39:28.13 0.3 undecidable manual Pg 184 66.4779 -0.136 68
IV.CING.HHZ. 2012-04-08T23:39:28.02 0.3 undecidable manual Sg 321 34.6431 -0.467 67
IV.ATCC.EHZ. 2012-04-08T23:39:28.24 0.1 undecidable manual Pg 275 67.1772 -0.13 90
IV.FDMO.HHZ. 2012-04-08T23:39:27.90 0.1 undecidable manual Sg 251 32.6451 -0.075 99
IV.SMA1.EHN. 2012-04-08T23:39:26.54 0.1 undecidable manual Pg 191 56.8986 -0.255 90
IV.ARVD.HHZ. 2012-04-08T23:39:26.76 0.1 undecidable manual Pg 314 58.5969 -0.299 88
IV.TERO.HHZ. 2012-04-08T23:39:26.81 0.3 undecidable manual Pg 169 57.7977 -0.12 69
IV.CESI.HHZ. 2012-04-08T23:39:25.18 0.1 undecidable manual Pg 253 47.8188 -0.235 92
IV.AOI.HHZ. 2012-04-08T23:39:25.41 0.3 undecidable manual Pg 13 47.4192 0.049 72
IV.SNTG.HHZ. 2012-04-08T23:39:24.55 0.1 undecidable manual Pg 288 44.7219 -0.394 89
IV.NRCA.HHZ. 2012-04-08T23:39:24.59 0.1 undecidable manual Pg 221 43.9227 -0.238 93
IV.OFFI.HHE. 2012-04-08T23:39:24.02 10.0 undecidable manual Pg 0 0 0
IV.CING.HHZ. 2012-04-08T23:39:23.16 0.1 undecidable manual Pg 321 34.6431 -0.283 92
IV.GUMA.HHZ. 2012-04-08T23:39:23.74 0.1 undecidable manual Sg 234 13.2756 0.261 95
IV.FDMO.HHZ. 2012-04-08T23:39:22.80 0.1 undecidable manual Pg 251 32.6451 -0.344 92
IV.GUMA.HHZ. 2012-04-08T23:39:20.63 0.1 undecidable manual Pg 234 13.2756 0.086 100
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
Waveforms Seismic signals in miniseed + resp format Download