Earthquake with magnitude of Mw 3.4 on date 31-08-2010 and time 03:00:11 (UTC) in region 1 km W Montereale (AQ)

A magnitude Mw 3.4 earthquake occured in region: 1 km W Montereale (AQ), on

  • 31-08-2010 03:00:11 (UTC)
  • 31-08-2010 05:00:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5240, 13.2290 at 11 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
Montereale AQ 1 2581 2581
Capitignano AQ 6 665 3246
Cagnano Amiterno AQ 7 1369 4615
Borbona RI 8 617 5232
Barete AQ 9 737 5969
Posta RI 11 694 6663
Pizzoli AQ 11 4326 10989
Cittareale RI 12 482 11471
Campotosto AQ 12 542 12013
Amatrice RI 13 2657 14670
Micigliano RI 16 127 14797
Antrodoco RI 17 2588 17385
Scoppito AQ 17 3727 21112
Borgo Velino RI 19 972 22084
Accumoli RI 19 667 22751

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
79 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
100 Km NE of Velletri (53303 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
Md 3.3
ML 3.0
Mw 3.4
2010-08-31
03:00:11
42.524 13.229 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1104299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-08-31 03:00:11 ± 0.08
Latitude 42.5240 ± 0.0009
Longitude 13.2290 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1104299

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 333
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 316.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.22578
Number of stations at which the event was observed 57
Number of stations from which data was used for origin computation 22
Magnitudes information

Mw:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations
Type of magnitude Mw
Reference to an origin 1104299
Agency INGV
Autore TDMT Historical
Time of creation (UTC) 2013-11-05 08:43:08

ML:3.0

Field Value
Value 3.0
Uncertainty 0.6
Num. used stations
Type of magnitude ML
Reference to an origin 1104299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:22:28

Md:3.3

Field Value
Value 3.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1104299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:22:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.DAVOX.HHN. 2010-08-31T03:01:29.79 10.0 undecidable manual Pn 0 0 0
CH.FUORN.HHZ. 2010-08-31T03:01:25.10 10.0 undecidable manual Pn 0 0 0
CH.BERNI.HHZ. 2010-08-31T03:01:24.77 10.0 undecidable manual Pn 0 0 0
IV.BRMO.HHE. 2010-08-31T03:01:22.71 10.0 undecidable manual Pn 0 0 0
NI.AGOR.HHE. 2010-08-31T03:01:20.98 10.0 undecidable manual Pn 0 0 0
IV.APPI.EHZ. 2010-08-31T03:01:18.79 10.0 undecidable manual Pn 0 0 0
IV.MABI.HHZ. 2010-08-31T03:01:16.67 10.0 undecidable manual Pn 0 0 0
IV.FVI.HHZ. 2010-08-31T03:01:16.59 10.0 undecidable manual Pn 0 0 0
NI.CGRP.HHE. 2010-08-31T03:01:14.07 10.0 undecidable manual Pn 0 0 0
IV.PTCC.HHZ. 2010-08-31T03:01:13.92 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHZ. 2010-08-31T03:01:12.25 10.0 undecidable manual Pn 0 0 0
NI.POLC.HHZ. 2010-08-31T03:01:08.32 10.0 undecidable manual Pn 0 0 0
IV.BSSO.HHN. 2010-08-31T03:01:05.46 10.0 undecidable manual Pg 0 0 0
IV.BDI.HHN. 2010-08-31T03:00:59.97 10.0 undecidable manual Sg 0 0 0
IV.BDI.HHN. 2010-08-31T03:00:54.70 10.0 undecidable manual Pg 0 0 0
IV.PE9.EHZ. 2010-08-31T03:00:52.43 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHZ. 2010-08-31T03:00:51.18 10.0 undecidable manual Pg 0 0 0
IV.CRMI.HHZ. 2010-08-31T03:00:49.16 10.0 undecidable manual Pg 0 0 0
IV.SACR.HHZ. 2010-08-31T03:00:48.65 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHN. 2010-08-31T03:00:46.31 10.0 undecidable manual Pg 0 0 0
IV.CSNT.HHE. 2010-08-31T03:00:45.81 10.0 undecidable manual Pg 0 0 0
IV.ASQU.HHZ. 2010-08-31T03:00:43.59 10.0 undecidable manual Pg 0 0 0
IV.GRFL.SHZ. 2010-08-31T03:00:43.25 10.0 undecidable manual Pg 0 0 0
IV.RSM.HHZ. 2010-08-31T03:00:43.38 10.0 undecidable manual Pg 0 0 0
IV.SGG.HHN. 2010-08-31T03:00:43.31 10.0 undecidable manual Pg 0 0 0
IV.SENI.EHN. 2010-08-31T03:00:40.47 10.0 undecidable manual Sg 0 0 0
IV.CRE.HHN. 2010-08-31T03:00:40.13 10.0 undecidable manual Pg 0 0 0
IV.CERA.HHE. 2010-08-31T03:00:38.13 10.0 undecidable manual Pg 0 0 0
IV.PARC.HHN. 2010-08-31T03:00:37.33 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHN. 2010-08-31T03:00:37.88 10.0 undecidable manual Pg 0 0 0
IV.CDCA.EHZ. 2010-08-31T03:00:37.88 10.0 undecidable manual Pg 0 0 0
IV.SENI.EHN. 2010-08-31T03:00:37.25 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHZ. 2010-08-31T03:00:34.52 0.3 undecidable manual Pg 324 135.4644 0.384 58
IV.CAFI.HHZ. 2010-08-31T03:00:34.66 0.3 undecidable manual Pg 312 136.0638 0.432 57
IV.FSSB.HHN. 2010-08-31T03:00:34.55 0.1 undecidable manual Pg 344 134.7651 0.513 74
IV.LATE.HHZ. 2010-08-31T03:00:32.16 0.3 undecidable manual Pg 275 116.8941 0.891 52
IV.PIEI.HHE. 2010-08-31T03:00:32.69 0.1 undecidable manual Pg 334 125.5743 0.073 82
IV.RNI2.HHZ. 2010-08-31T03:00:32.65 0.6 undecidable manual Pg 140 118.5924 1.12 29
IV.CESI.HHZ. 2010-08-31T03:00:30.20 0.6 undecidable manual Sg 334 59.5959 -0.009 46
IV.ROM9.HHZ. 2010-08-31T03:00:30.29 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHE. 2010-08-31T03:00:29.20 0.1 undecidable manual Pg 325 100.0221 0.522 80
IV.POFI.HHN. 2010-08-31T03:00:29.32 0.1 undecidable manual Pg 156 97.8243 0.979 66
IV.FDMO.HHE. 2010-08-31T03:00:29.89 0.3 undecidable manual Sg 349 58.0974 0.085 70
IV.CING.HHN. 2010-08-31T03:00:27.78 0.1 undecidable manual Pg 358 94.5387 -0.054 85
IV.MNS.HHE. 2010-08-31T03:00:26.43 0.6 undecidable manual Sg 251 47.4192 -0.526 40
IV.GUAR.HHE. 2010-08-31T03:00:25.79 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2010-08-31T03:00:24.86 0.1 undecidable manual Pg 156 79.4649 -0.644 76
IV.MTCE.HHZ. 2010-08-31T03:00:23.33 0.1 undecidable manual Pg 216 68.376 -0.476 80
.FIAM.HHN. 2010-08-31T03:00:22.07 0.6 undecidable manual Sg 198 29.748 -0.186 47
IV.TERO.HHE. 2010-08-31T03:00:22.51 0.6 undecidable manual Sg 70 32.5452 -0.483 45
IV.CESI.HHZ. 2010-08-31T03:00:22.28 0.1 undecidable manual Pg 334 59.5959 -0.163 89
.T0106.EHE. 2010-08-31T03:00:21.78 0.6 undecidable manual Sg 152 27.1506 0.224 48
IV.FDMO.HHE. 2010-08-31T03:00:21.89 0.1 undecidable manual Pg 349 58.0974 -0.32 86
IV.VCEL.EHN. 2010-08-31T03:00:21.75 0.3 undecidable manual Pg 106 52.0035 0.466 65
MN.AQU.HHN. 2010-08-31T03:00:21.10 0.6 undecidable manual Sg 143 23.5542 0.509 45
IV.MNS.HHE. 2010-08-31T03:00:20.36 0.3 undecidable manual Pg 251 47.4192 -0.205 67
IV.GUMA.HHE. 2010-08-31T03:00:19.23 10.0 undecidable manual Pg 0 0 0
.T0104.HHN. 2010-08-31T03:00:19.66 0.3 undecidable manual Sg 154 20.2686 -0.045 75
IV.FAGN.HHZ. 2010-08-31T03:00:19.27 0.1 undecidable manual Pg 134 40.7259 -0.275 92
IV.MDI.HHN. 2010-08-31T03:00:18.50 10.0 undecidable manual Sg 0 0 0
.SMA1.EHE. 2010-08-31T03:00:18.35 0.6 undecidable manual Sg 36 14.6742 0.138 50
.T0106.EHE. 2010-08-31T03:00:17.40 0.1 undecidable manual Pg 152 27.1506 -0.047 98
.FIAM.HHN. 2010-08-31T03:00:17.70 0.1 positive manual Pg 198 29.748 -0.152 94
IV.TERO.HHE. 2010-08-31T03:00:17.80 0.1 undecidable manual Pg 70 32.5452 -0.477 89
MN.AQU.HHN. 2010-08-31T03:00:16.94 0.1 undecidable manual Pg 143 23.5542 0.05 100
.T0104.HHN. 2010-08-31T03:00:16.28 0.1 undecidable manual Pg 154 20.2686 -0.099 98
.SMA1.EHE. 2010-08-31T03:00:15.44 0.1 undecidable manual Pg 36 14.6742 -0.076 99
IV.MDI.HHN. 2010-08-31T03:00:13.02 10.0 undecidable manual Pg 0 0 0
IV.CIGN.HHE. 2010-08-31T03:00:01.88 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
MagnitudeMw 3.35
Scalar Moment1.30816E+21 dyne-cm
Computed depth5 km
QualityCa
Variance Reduction%
Double Couple0%
CLVD0%
ISO0%
Model usedCIA
Modemanual
Statusfinal

Moment Tensor Components

Component Value
Mrr-1.2E+21
Mtt1.0237E+21
Mpp1.763E+20
Mrt-1.436E+20
Mrp-3.253E+20
Mtp-5.705E+20

Nodal Planes

Name Strike Dip Rake
PN131348-67
PN210147-113

Fault Plane solution

Focal Mechanism

psmeca (GMT documentation)

5 313 48 -67 101 47 -113 1.30816 21 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