Earthquake with magnitude of ML 3.5 on date 16-08-2007 and time 02:29:42 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 3.5 earthquake occured in region: 3 km NE Norcia (PG), on

  • 16-08-2007 00:29:42 (UTC)
  • 16-08-2007 02:29:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8110, 13.1170 at 8 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
Norcia PG 3 4957 4957
Preci PG 10 724 5681
Castelsantangelo sul Nera MC 10 281 5962
Cascia PG 13 3217 9179
Visso MC 14 1107 10286
Ussita MC 15 444 10730
Arquata del Tronto AP 15 1178 11908
Cerreto di Spoleto PG 16 1075 12983
Accumoli RI 17 667 13650
Sellano PG 18 1079 14729
Montegallo AP 18 523 15252
Poggiodomo PG 18 117 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km W of Pescara (121014 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
100 Km NW of Chieti (51815 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
Bulletin
Rev1000
ML 3.5 2007-08-16
00:29:42
42.811 13.117 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 646899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-08-16 00:29:42 ± 0.16
Latitude 42.8110 ± 0.0072
Longitude 13.1170 ± 0.0147
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 646899

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1131
Semi-minor axis of confidence ellipse (meter) 673
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 1442.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.91
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 3.98759
Number of stations at which the event was observed 59
Number of stations from which data was used for origin computation 39
Magnitude information

ML:3.5

Field Value
Value 3.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 646899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:17:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PCP.HHZ. 2007-08-16T00:31:33.20 10.0 undecidable manual Sg 0 0 0
IV.SOI.SHZ. 2007-08-16T00:31:07.96 10.0 undecidable manual Pn 0 0 0
IV.GRI.SHZ. 2007-08-16T00:31:03.58 10.0 undecidable manual Pn 0 0 0
IV.MRGE.HHE. 2007-08-16T00:30:55.86 10.0 undecidable manual Pn 0 0 0
IV.ORO.SHZ. 2007-08-16T00:30:54.72 10.0 undecidable manual Pn 0 0 0
IV.VAI.SHZ. 2007-08-16T00:30:50.49 10.0 undecidable manual Pn 0 0 0
IV.ORI.EHE. 2007-08-16T00:30:48.25 10.0 undecidable manual Pn 0 0 0
IV.SEST.EHZ. 2007-08-16T00:30:46.05 0.1 undecidable manual Pg 351 442.6236 1.124 15
IV.APPI.EHZ. 2007-08-16T00:30:44.36 0.1 undecidable manual Pg 341 433.344 0.591 19
IV.FIN.SHZ. 2007-08-16T00:30:43.04 0.3 undecidable manual Pg 293 424.1532 0.413 15
IV.IMI.SHZ. 2007-08-16T00:30:43.03 0.3 undecidable manual Pg 288 438.5277 -1.388 10
IV.CRAC.EHZ. 2007-08-16T00:30:39.08 0.1 undecidable manual Pg 133 386.5242 1.126 16
IV.PTCC.SHZ. 2007-08-16T00:30:38.49 0.1 undecidable manual Pg 3 399.4002 -1.062 16
IV.CTI.EHN. 2007-08-16T00:30:36.91 0.1 undecidable manual Pg 343 377.4333 0.092 23
IV.GMNA.SHZ. 2007-08-16T00:30:36.88 0.1 undecidable manual Pg 0 384.8259 -0.855 18
IV.FIU.EHN. 2007-08-16T00:30:31.87 10.0 undecidable manual Sg 0 0 0
IV.SGO.SHZ. 2007-08-16T00:30:29.64 10.0 undecidable manual Pg 0 0 0
IV.RAVA.EHN. 2007-08-16T00:30:26.57 0.3 undecidable manual Pg 324 268.6311 3.296 1
IV.FG4.SHZ. 2007-08-16T00:30:25.35 10.0 undecidable manual Pg 0 0 0
IV.FIU.EHN. 2007-08-16T00:30:25.31 10.0 undecidable manual Pg 0 0 0
IV.CSSN.SHZ. 2007-08-16T00:30:24.77 10.0 undecidable manual Pg 0 0 0
IV.FGMS.SHZ. 2007-08-16T00:30:23.42 0.1 undecidable manual Pg 117 263.1366 0.83 30
IV.GSCL.SHZ. 2007-08-16T00:30:23.17 0.3 undecidable manual Pg 311 265.4343 0.292 26
IV.FG5.SHZ. 2007-08-16T00:30:21.81 0.3 undecidable manual Pg 133 245.2656 1.439 19
IV.PII.SHZ. 2007-08-16T00:30:19.04 0.3 undecidable manual Pg 297 232.4895 0.265 34
IV.RGNG.SHZ. 2007-08-16T00:30:19.76 0.1 undecidable manual Pg 121 238.8831 0.189 44
IV.BRSN.SHZ. 2007-08-16T00:30:16.09 10.0 undecidable manual Pg 0 0 0
IV.FG2.SHZ. 2007-08-16T00:30:15.65 0.1 undecidable manual Pg 123 201.4428 0.73 48
IV.SEI.SHZ. 2007-08-16T00:30:14.53 0.3 undecidable manual Pg 315 197.6577 0.082 44
IV.TDS.SHZ. 2007-08-16T00:30:14.39 10.0 undecidable manual Pg 0 0 0
IV.RFI.SHZ. 2007-08-16T00:30:14.12 0.3 undecidable manual Pg 157 182.1843 1.6 26
IV.VMG.SHZ. 2007-08-16T00:30:12.87 0.3 undecidable manual Pg 316 179.8866 0.632 42
GU.SC2M.HHE. 2007-08-16T00:30:12.07 10.0 undecidable manual Pg 0 0 0
IV.AOI.BHE. 2007-08-16T00:30:11.57 0.3 undecidable manual Sg 25 90.9423 1.433 37
IV.SFI.SHZ. 2007-08-16T00:30:09.14 0.1 undecidable manual Pg 320 158.7189 0.109 71
IV.VCEL.EHE. 2007-08-16T00:30:06.56 0.6 undecidable manual Sg 128 75.0693 0.664 37
IV.ARVD.EHZ. 2007-08-16T00:30:06.63 0.3 undecidable manual Sg 350 77.5668 0.069 65
IV.RSM.SHZ. 2007-08-16T00:30:05.98 0.1 undecidable manual Pg 337 135.2646 0.565 69
IV.SDI.SHZ. 2007-08-16T00:30:04.72 0.3 undecidable manual Pg 155 134.7651 -0.615 51
IV.LAV9.SHZ. 2007-08-16T00:30:04.61 0.3 undecidable manual Pg 195 130.2696 -0.034 59
IV.PESA.EHN. 2007-08-16T00:30:04.81 0.1 undecidable manual Pg 350 127.2726 0.625 68
IV.MA9.SHZ. 2007-08-16T00:30:03.19 0.1 undecidable manual Pg 198 121.3896 -0.083 79
IV.SACS.HHZ. 2007-08-16T00:30:00.47 0.3 undecidable manual Pg 273 98.2239 0.762 51
IV.CDCA.SHE. 2007-08-16T00:30:00.98 0.3 undecidable manual Pg 315 101.3208 0.802 50
IV.SENI.SHN. 2007-08-16T00:30:00.09 0.1 undecidable manual Pg 5 99.6225 0.171 81
IV.BADI.EHZ. 2007-08-16T00:30:00.55 0.1 undecidable manual Pg 318 104.8173 -0.167 81
IV.FSSB.SHZ. 2007-08-16T00:29:59.80 0.1 positive manual Pg 344 101.6205 -0.424 77
IV.ASS.SHZ. 2007-08-16T00:29:57.94 0.3 undecidable manual Sg 307 47.0196 -0.466 63
IV.AOI.BHE. 2007-08-16T00:29:57.92 0.1 undecidable manual Pg 25 90.9423 -0.654 73
IV.PTQR.SHZ. 2007-08-16T00:29:57.62 0.1 undecidable manual Pg 165 90.5427 -0.901 65
IV.VCEL.EHE. 2007-08-16T00:29:55.57 0.1 positive manual Pg 128 75.0693 -0.556 78
IV.ARVD.EHZ. 2007-08-16T00:29:55.78 0.1 positive manual Pg 350 77.5668 -0.73 72
IV.FAGN.BHN. 2007-08-16T00:29:55.01 0.1 undecidable manual Pg 148 71.5728 -0.577 78
IV.PSB1.HHZ. 2007-08-16T00:29:53.38 10.0 undecidable manual Pg 0 0 0
MN.AQU.HHN. 2007-08-16T00:29:52.51 0.1 undecidable manual Pg 155 55.7997 -0.654 78
IV.LNSS.BHE. 2007-08-16T00:29:52.06 0.3 undecidable manual Sg 195 23.9538 0.508 65
IV.ASS.SHZ. 2007-08-16T00:29:51.37 0.1 undecidable manual Pg 307 47.0196 -0.431 85
GU.PCP.HHZ. 2007-08-16T00:29:51.38 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2007-08-16T00:29:51.65 0.1 positive manual Pg 344 51.3153 -0.815 73
IV.LNSS.BHE. 2007-08-16T00:29:48.05 0.1 undecidable manual Pg 195 23.9538 0.206 93
IV.NRCA.SHZ. 2007-08-16T00:29:44.47 0.1 positive manual Pg 356 2.4975 -0.031 100
IV.MNO.SHZ. 2007-08-16T00:29:42.99 10.0 undecidable manual Pg 0 0 0
IV.DOI.HHZ. 2007-08-16T00:29:40.38 10.0 undecidable manual Pg 0 0 0
IV.ESLN.BHZ. 2007-08-16T00:29:39.45 10.0 undecidable manual Pg 0 0 0
IV.MMME.BHN. 2007-08-16T00:29:36.52 10.0 undecidable manual Pg 0 0 0
IV.MAON.HHZ. 2007-08-16T00:29:30.68 10.0 undecidable manual Pg 0 0 0
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