Earthquake with magnitude of Mw 2.8 on date 17-04-2010 and time 01:21:39 (UTC) in region 4 km NW Pietralunga (PG)

A magnitude Mw 2.8 earthquake occured in region: 4 km NW Pietralunga (PG), on

  • 17-04-2010 01:21:39 (UTC)
  • 17-04-2010 03:21:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4790, 12.4180 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
Pietralunga PG 4 2111 2111
Apecchio PU 9 1882 3993
Piobbico PU 14 2029 6022
Città di Castello PG 15 39913 45935
Montone PG 15 1680 47615
Cantiano PU 17 2245 49860
Gubbio PG 19 32216 82076
Mercatello sul Metauro PU 20 1378 83454

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Perugia (166134 inhabitants)
43 Km E of Arezzo (99543 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
63 Km NW of Foligno (57155 inhabitants)
63 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
75 Km S of Cesena (96758 inhabitants)
88 Km SE of Forlì (117913 inhabitants)
90 Km E of Siena (53903 inhabitants)
90 Km W of Ancona (100861 inhabitants)
99 Km E of Firenze (382808 inhabitants)
100 Km SE of Faenza (58541 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
Md 3.1
ML 2.8
Mw 2.8
2010-04-17
01:21:39
43.479 12.418 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1033299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-17 01:21:39 ± 0.05
Latitude 43.4790 ± 0.0036
Longitude 12.4180 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1033299

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 308
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 202
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 99
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.31391
Number of stations at which the event was observed 74
Number of stations from which data was used for origin computation 33
Magnitudes information

Mw:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations
Type of magnitude Mw
Reference to an origin 1033299
Agency INGV
Autore TDMT Historical
Time of creation (UTC) 2013-11-05 08:43:08

ML:2.8

Field Value
Value 2.8
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1033299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:51:36

Md:3.1

Field Value
Value 3.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1033299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:51:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.CGRP.HHZ. 2010-04-17T01:22:52.22 10.0 undecidable manual Sn 0 0 0
MN.TUE.HHN. 2010-04-17T01:22:41.13 10.0 undecidable manual Pn 0 0 0
SI.RISI.BHE. 2010-04-17T01:22:37.86 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHZ. 2010-04-17T01:22:36.11 10.0 undecidable manual Sn 0 0 0
IV.MSC.EHZ. 2010-04-17T01:22:36.72 10.0 undecidable manual Pn 0 0 0
MN.VLC.HHN. 2010-04-17T01:22:33.04 10.0 undecidable manual Pn 0 0 0
IV.FVI.HHN. 2010-04-17T01:22:31.03 10.0 undecidable manual Pn 0 0 0
IV.CERA.HHN. 2010-04-17T01:22:27.28 10.0 undecidable manual Pn 0 0 0
RF.GEPF.HHZ. 2010-04-17T01:22:27.37 10.0 undecidable manual Pn 0 0 0
IV.CMPO.HHZ. 2010-04-17T01:22:26.32 10.0 undecidable manual Sg 0 0 0
NI.VINO.HHZ. 2010-04-17T01:22:26.10 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHZ. 2010-04-17T01:22:26.65 10.0 undecidable manual Pn 0 0 0
NI.PALA.HHZ. 2010-04-17T01:22:25.75 10.0 undecidable manual Pn 0 0 0
IV.GIUL.HHZ. 2010-04-17T01:22:23.43 10.0 undecidable manual Sn 0 0 0
IV.POFI.HHZ. 2010-04-17T01:22:22.45 10.0 undecidable manual Pn 0 0 0
IV.LPEL.HHE. 2010-04-17T01:22:21.54 10.0 undecidable manual Pn 0 0 0
IV.GIUL.HHZ. 2010-04-17T01:22:19.05 10.0 undecidable manual Pn 0 0 0
IV.FAEN.HHN. 2010-04-17T01:22:18.29 10.0 undecidable manual Pn 0 0 0
IV.VVLD.HHZ. 2010-04-17T01:22:17.29 10.0 undecidable manual Pn 0 0 0
IV.SDI.SHZ. 2010-04-17T01:22:16.96 10.0 undecidable manual Pn 0 0 0
IV.GUAR.HHZ. 2010-04-17T01:22:16.44 10.0 undecidable manual Pn 0 0 0
IV.INTR.HHZ. 2010-04-17T01:22:16.13 10.0 undecidable manual Pn 0 0 0
IV.RMP.HHZ. 2010-04-17T01:22:13.86 10.0 undecidable manual Pn 0 0 0
IV.MTCE.HHZ. 2010-04-17T01:22:13.09 10.0 undecidable manual Sn 0 0 0
IV.PTQR.SHZ. 2010-04-17T01:22:12.06 10.0 undecidable manual Pn 0 0 0
IV.GSCL.SHZ. 2010-04-17T01:22:12.00 10.0 undecidable manual Pn 0 0 0
IV.ZCCA.HHE. 2010-04-17T01:22:12.26 10.0 undecidable manual Pn 0 0 0
IV.CERT.HHZ. 2010-04-17T01:22:10.31 10.0 undecidable manual Pn 0 0 0
GU.MAIM.HHZ. 2010-04-17T01:22:10.23 10.0 undecidable manual Pn 0 0 0
IV.VCEL.EHZ. 2010-04-17T01:22:10.50 10.0 undecidable manual Pn 0 0 0
IV.FIR.HHE. 2010-04-17T01:22:09.47 10.0 undecidable manual Sg 0 0 0
IV.MTCE.HHZ. 2010-04-17T01:22:09.23 10.0 undecidable manual Pn 0 0 0
NI.CGRP.HHZ. 2010-04-17T01:22:08.68 10.0 undecidable manual Pn 0 0 0
IV.FAGN.HHZ. 2010-04-17T01:22:08.50 10.0 undecidable manual Pn 0 0 0
IV.FNVD.HHE. 2010-04-17T01:22:08.07 10.0 undecidable manual Sg 0 0 0
IV.OFFI.HHZ. 2010-04-17T01:22:07.26 10.0 undecidable manual Sg 0 0 0
IV.BLLA.EHE. 2010-04-17T01:22:07.28 10.0 undecidable manual Pn 0 0 0
IV.T0104.HHZ. 2010-04-17T01:22:06.32 10.0 undecidable manual Pg 0 0 0
IV.CMPO.HHZ. 2010-04-17T01:22:06.90 10.0 undecidable manual Pg 0 0 0
MN.AQU.HHZ. 2010-04-17T01:22:06.82 10.0 undecidable manual Pg 0 0 0
IV.FIR.HHE. 2010-04-17T01:22:05.61 10.0 undecidable manual Pg 0 0 0
IV.T0106.EHZ. 2010-04-17T01:22:05.88 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHE. 2010-04-17T01:22:04.92 10.0 undecidable manual Pg 0 0 0
IV.CRMI.HHE. 2010-04-17T01:22:04.80 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHE. 2010-04-17T01:22:04.14 0.6 undecidable manual Pg 157 145.8429 -0.065 38
IV.FDMO.HHN. 2010-04-17T01:22:03.17 1.0 undecidable manual Sg 132 73.0713 0.663 19
IV.OFFI.HHZ. 2010-04-17T01:22:03.81 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHE. 2010-04-17T01:22:02.50 0.3 undecidable manual Pg 134 135.1647 -0.053 58
IV.GRFL.SHZ. 2010-04-17T01:22:01.46 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHE. 2010-04-17T01:22:01.06 0.3 undecidable manual Sg 316 65.7897 0.481 61
IV.MGAB.HHN. 2010-04-17T01:22:01.48 0.6 undecidable manual Sg 202 67.4769 0.448 41
IV.SEI.SHZ. 2010-04-17T01:22:01.13 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHZ. 2010-04-17T01:22:00.88 0.6 undecidable manual Pg 170 123.1878 0.172 39
IV.CING.HHZ. 2010-04-17T01:22:00.56 0.1 undecidable manual Sg 100 63.6918 0.548 80
IV.ASQU.HHZ. 2010-04-17T01:22:00.30 0.6 undecidable manual Sg 305 61.5939 0.852 35
IV.SMA1.EHZ. 2010-04-17T01:22:00.37 0.1 undecidable manual Pg 141 119.991 0.158 78
IV.LATE.HHE. 2010-04-17T01:22:00.06 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2010-04-17T01:21:58.44 0.3 undecidable manual Pg 152 109.5126 -0.162 60
IV.CESX.HHZ. 2010-04-17T01:21:57.25 0.3 undecidable manual Pg 172 97.2249 0.532 56
IV.ARCI.HHZ. 2010-04-17T01:21:57.46 0.3 undecidable manual Pg 228 103.2189 -0.173 60
IV.AOI.HHZ. 2010-04-17T01:21:56.76 0.3 undecidable manual Pg 85 95.6376 0.301 60
IV.VMG.SHZ. 2010-04-17T01:21:55.73 0.6 undecidable manual Pg 308 88.245 0.41 40
IV.GUMA.HHZ. 2010-04-17T01:21:55.52 0.1 undecidable manual Pg 122 87.246 0.339 80
IV.CSNT.HHZ. 2010-04-17T01:21:55.89 0.3 undecidable manual Pg 270 90.7425 0.172 62
IV.NRCA.SHZ. 2010-04-17T01:21:55.51 0.1 undecidable manual Pg 142 91.1421 -0.258 81
IV.SACS.HHN. 2010-04-17T01:21:54.04 0.3 undecidable manual Pg 211 81.0522 -0.18 63
IV.ARVD.HHZ. 2010-04-17T01:21:54.02 0.1 undecidable manual Sg 87 42.2244 -0.259 89
IV.CAFI.HHZ. 2010-04-17T01:21:53.60 0.1 undecidable manual Sg 246 40.0266 -0.092 92
IV.CRE.HHE. 2010-04-17T01:21:53.47 0.6 undecidable manual Sg 293 40.5261 -0.376 44
IV.SENI.EHZ. 2010-04-17T01:21:53.83 0.3 undecidable manual Pg 69 70.1742 1.292 42
IV.FSSB.HHZ. 2010-04-17T01:21:52.92 0.3 undecidable manual Sg 50 37.4292 -0.075 70
IV.FDMO.HHN. 2010-04-17T01:21:52.57 0.1 undecidable manual Pg 132 73.0713 -0.412 81
IV.PESA.HHZ. 2010-04-17T01:21:51.20 0.1 undecidable manual Pg 33 61.494 0.003 91
IV.MGAB.HHN. 2010-04-17T01:21:51.95 0.1 undecidable manual Pg 202 67.4769 -0.18 86
IV.CING.HHZ. 2010-04-17T01:21:51.25 0.1 undecidable manual Pg 100 63.6918 -0.291 85
IV.ASQU.HHZ. 2010-04-17T01:21:51.11 0.3 undecidable manual Pg 305 61.5939 -0.105 66
IV.SFI.EHE. 2010-04-17T01:21:51.48 0.3 undecidable manual Pg 316 65.7897 -0.388 62
IV.CSSN.SHZ. 2010-04-17T01:21:50.70 10.0 undecidable manual Pg 0 0 0
IV.RSM.HHE. 2010-04-17T01:21:49.96 0.3 undecidable manual Pg 3 50.1165 0.505 62
IV.MURB.HHE. 2010-04-17T01:21:49.48 0.1 undecidable manual Sg 160 25.4523 0.213 93
IV.PARC.HHZ. 2010-04-17T01:21:48.74 0.3 undecidable manual Sg 323 23.754 0.039 72
IV.CRE.HHE. 2010-04-17T01:21:47.56 0.1 undecidable manual Pg 293 40.5261 -0.421 86
IV.ARVD.HHZ. 2010-04-17T01:21:47.79 0.1 undecidable manual Pg 87 42.2244 -0.441 86
IV.CAFI.HHZ. 2010-04-17T01:21:47.54 0.1 undecidable manual Pg 246 40.0266 -0.352 88
IV.CDCA.EHZ. 2010-04-17T01:21:46.06 0.1 undecidable manual Sg 261 14.9739 0.12 96
IV.ATFO.HHZ. 2010-04-17T01:21:46.64 0.1 undecidable manual Sg 135 17.5713 -0.084 96
IV.FSSB.HHZ. 2010-04-17T01:21:46.97 0.1 undecidable manual Pg 50 37.4292 -0.519 85
IV.MURB.HHE. 2010-04-17T01:21:45.22 0.1 undecidable manual Pg 160 25.4523 -0.117 94
IV.PIEI.HHE. 2010-04-17T01:21:45.04 0.1 undecidable manual Sg 56 11.3775 0.171 96
IV.BADI.EHZ. 2010-04-17T01:21:45.84 0.1 undecidable manual Sg 284 14.3745 0.089 97
IV.PARC.HHZ. 2010-04-17T01:21:44.82 0.1 undecidable manual Pg 323 23.754 -0.19 93
IV.ATVO.HHN. 2010-04-17T01:21:44.82 0.1 undecidable manual Sg 185 10.7781 0.109 97
IV.BADI.EHZ. 2010-04-17T01:21:43.36 0.1 undecidable manual Pg 284 14.3745 0.053 97
IV.CDCA.EHZ. 2010-04-17T01:21:43.43 0.1 undecidable manual Pg 261 14.9739 0.014 98
IV.ATFO.HHZ. 2010-04-17T01:21:43.77 0.1 undecidable manual Pg 135 17.5713 -0.099 96
IV.ATVO.HHN. 2010-04-17T01:21:42.83 0.1 undecidable manual Pg 185 10.7781 0.123 97
IV.ATPC.HHE. 2010-04-17T01:21:42.94 0.1 undecidable manual Sg 86 3.1968 -0.149 97
IV.PIEI.HHE. 2010-04-17T01:21:42.78 0.1 undecidable manual Pg 56 11.3775 -0.018 99
IV.ATPC.HHE. 2010-04-17T01:21:41.75 0.1 undecidable manual Pg 86 3.1968 -0.02 100
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
MagnitudeMw 2.83
Scalar Moment2.16469E+20 dyne-cm
Computed depth5 km
QualityBa
Variance Reduction%
Double Couple0%
CLVD0%
ISO0%
Model usedCIA
Modemanual
Statusfinal

Moment Tensor Components

Component Value
Mrr-1.202E+20
Mtt7.48E+19
Mpp4.54E+19
Mrt1.527E+20
Mrp-8.82E+19
Mtp-6.89E+19

Nodal Planes

Name Strike Dip Rake
PN130272-95
PN213818-75

Fault Plane solution

Focal Mechanism

psmeca (GMT documentation)

5 302 72 -95 138 18 -75 2.16469 20 0.5 0.5

TDMT references

More info and references
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