Earthquake with magnitude of Md 3.5 on date 12-04-2005 and time 02:31:51 (Italy) in region 2 km W Sant'Angelo in Pontano (MC)

A magnitude Md 3.5 earthquake occured in region: 2 km W Sant'Angelo in Pontano (MC), on

  • 12-04-2005 00:31:51 (UTC)
  • 12-04-2005 02:31:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.09, 13.38 at 4 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
Sant'Angelo in Pontano MC 2 1436 1436
Gualdo MC 4 815 2251
San Ginesio MC 5 3498 5749
Penna San Giovanni MC 6 1108 6857
Ripe San Ginesio MC 6 852 7709
Falerone FM 8 3337 11046
Colmurano MC 8 1263 12309
Monte San Martino MC 9 765 13074
Loro Piceno MC 9 2401 15475
Montappone FM 9 1682 17157
Sarnano MC 9 3264 20421
Monte Vidon Corrado FM 9 731 21152
Servigliano FM 9 2336 23488
Cessapalombo MC 10 512 24000
Camporotondo di Fiastrone MC 10 563 24563
Massa Fermana FM 10 963 25526
Smerillo FM 11 365 25891
Urbisaglia MC 12 2628 28519
Santa Vittoria in Matenano FM 13 1330 29849
Amandola FM 13 3629 33478
Belmonte Piceno FM 13 646 34124
Monteleone di Fermo FM 13 395 34519
Mogliano MC 13 4696 39215
Caldarola MC 13 1823 41038
Montefalcone Appennino FM 14 424 41462
Montegiorgio FM 14 6851 48313
Belforte del Chienti MC 14 1886 50199
Monsampietro Morico FM 15 659 50858
Tolentino MC 15 20069 70927
Montelparo FM 15 778 71705
Comunanza AP 15 3166 74871
Petriolo MC 16 1998 76869
Bolognola MC 17 142 77011
Montefortino FM 17 1178 78189
Francavilla d'Ete FM 17 964 79153
Force AP 17 1354 80507
Montottone FM 17 979 81486
Magliano di Tenna FM 18 1452 82938
Serrapetrona MC 18 966 83904
Acquacanina MC 18 121 84025
Monte Rinaldo FM 18 379 84404
Grottazzolina FM 18 3398 87802
Rapagnano FM 19 2145 89947
Fiastra MC 19 559 90506
Pollenza MC 20 6618 97124
Monte San Pietrangeli FM 20 2458 99582
Ortezzano FM 20 774 100356

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NW of Teramo (54892 inhabitants)
57 Km E of Foligno (57155 inhabitants)
59 Km S of Ancona (100861 inhabitants)
80 Km E of Perugia (166134 inhabitants)
83 Km N of L'Aquila (69753 inhabitants)
84 Km NE of Terni (111501 inhabitants)
88 Km SE of Fano (60888 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 inhabitants)
98 Km SE of Pesaro (94582 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 last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. 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 last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 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.
Earthquakes since 1985

Earthquakes since 1985

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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 3.5
ML-VAX 3.5
2005-04-12
00:31:51
43.09 13.38 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 514029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-04-12 00:31:51 ± 0.328
Latitude 43.09 ± 0.01
Longitude 13.38 ± 0.03
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 514029

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
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) 2385.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.04144
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

Md:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 514029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:13:22

ML:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations 14
Type of magnitude ML
Reference to an origin 514029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORO.Z. 2005-04-12T00:33:01.50 10.0 undecidable manual PN 305 0.0414 -0.83 0.5
--.BRMO.Z. 2005-04-12T00:32:53.91 10.0 undecidable manual PN 328 0.0359 0.5 0.8
--.FIN.Z. 2005-04-12T00:32:53.80 10.0 undecidable manual PN 288 0.0351 0.98 0.5
--.LTRZ.Z. 2005-04-12T00:32:47.54 10.0 undecidable manual PN 132 0.0321 -0.04 1
--.SLCN.Z. 2005-04-12T00:32:43.49 10.0 undecidable manual PN 147 0.0286 1.25 0.4
--.SAL.Z. 2005-04-12T00:32:42.45 10.0 undecidable manual PN 321 0.0291 -0.52 0.9
--.PTCC.Z. 2005-04-12T00:32:42.55 10.0 undecidable manual PN 359 0.0297 -1.43 0.3
--.CTI.Z. 2005-04-12T00:32:41.69 10.0 undecidable manual PN 337 0.0287 -0.77 0.7
--.GMNA.Z. 2005-04-12T00:32:41.20 10.0 undecidable manual PN 356 0.0287 -1.3 0.4
--.SGO.Z. 2005-04-12T00:32:39.40 10.0 undecidable manual PN 149 0.0261 0.87 0.7
--.MRLC.Z. 2005-04-12T00:32:38.20 10.0 undecidable manual PN 145 0.0253 0.83 0.8
--.PGD.Z. 2005-04-12T00:32:37.52 10.0 undecidable manual SN 303 0.0129 -0.2 0.6
--.TRI.Z. 2005-04-12T00:32:33.14 10.0 undecidable manual PN 5 0.0236 -1.49 0.3
--.GSCL.Z. 2005-04-12T00:32:32.84 10.0 undecidable manual PN 302 0.0214 1.68 0.2
--.FG5.Z. 2005-04-12T00:32:30.86 10.0 undecidable manual PN 141 0.0206 0.9 0.8
--.PII.Z. 2005-04-12T00:32:28.81 10.0 undecidable manual PN 287 0.0194 0.52 1.1
--.RGNG.Z. 2005-04-12T00:32:27.75 10.0 undecidable manual PN 130 0.0194 -0.46 1.2
--.SEI.Z. 2005-04-12T00:32:24.60 10.0 undecidable manual PN 303 0.0157 1.48 0.4
--.VMG.Z. 2005-04-12T00:32:21.52 10.0 undecidable manual PN 303 0.0142 1.17 0.7
--.CII.Z. 2005-04-12T00:32:21.45 10.0 undecidable manual PN 153 0.0138 1.88 0.2
--.LAV9.Z. 2005-04-12T00:32:20.60 10.0 undecidable manual PN 199 0.0134 0.89 0.9
--.PGD.Z. 2005-04-12T00:32:19.36 10.0 undecidable manual PN 303 0.0129 1.13 0.7
--.AQU.N. 2005-04-12T00:32:18.95 10.0 undecidable manual SG 178 0.0066 0.59 0.5
--.MA9.Z. 2005-04-12T00:32:18.37 10.0 undecidable manual PN 201 0.0128 0.24 1.5
--.SFI.Z. 2005-04-12T00:32:18.34 10.0 undecidable manual PN 306 0.0123 0.92 0.9
--.SDI.Z. 2005-04-12T00:32:18.29 10.0 undecidable manual PN 166 0.0127 0.24 1.5
--.FSSB.Z. 2005-04-12T00:32:17.92 10.0 undecidable manual SG 323 0.0066 -0.46 0.5
--.CAMP.E. 2005-04-12T00:32:12.59 10.0 undecidable manual SG 177 0.005 0.06 0.6
--.PTQR.Z. 2005-04-12T00:32:11.74 10.0 undecidable manual PG 179 0.0096 -1.46 0.4
--.ARV.Z. 2005-04-12T00:32:09.89 10.0 undecidable manual SG 321 0.0046 -1.21 0.2
--.MNS.Z. 2005-04-12T00:32:08.43 10.0 positive manual PG 215 0.0079 -1.13 1.4
--.FAGN.Z. 2005-04-12T00:32:08.10 10.0 undecidable manual PG 169 0.0075 -0.93 0.9
--.FSSB.Z. 2005-04-12T00:32:06.33 10.0 undecidable manual PG 323 0.0066 -0.74 1.1
--.AQU.Z. 2005-04-12T00:32:05.94 10.0 undecidable manual PG 178 0.0066 -1.12 0.7
--.CING.N. 2005-04-12T00:32:04.55 10.0 undecidable manual SG 334 0.0028 0.84 0.4
--.CAMP.Z. 2005-04-12T00:32:03.60 10.0 positive manual PG 177 0.005 -0.63 2.4
--.TERO.Z. 2005-04-12T00:32:02.20 10.0 undecidable manual PG 160 0.0045 -0.39 1.4
--.ASS.Z. 2005-04-12T00:32:02.41 10.0 negative manual PG 266 0.0048 -0.79 2.1
--.AOI.Z. 2005-04-12T00:32:02.20 10.0 undecidable manual PG 19 0.0043 -0.08 1.5
--.ARV.Z. 2005-04-12T00:32:02.40 10.0 positive manual PG 321 0.0046 -0.47 2.7
--.SNTG.Z. 2005-04-12T00:31:59.70 10.0 negative manual PG 296 0.0032 0.08 3
--.CING.Z. 2005-04-12T00:31:59.19 10.0 positive manual PG 334 0.0028 0.59 2.5
--.NRCA.Z. 2005-04-12T00:31:59.34 10.0 positive manual PG 216 0.0029 0.44 2.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

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