Earthquake with magnitude of ML 2.6 on date 21-05-2005 and time 14:39:12 (Italy) in region 2 km NE Gualdo (MC)

A magnitude ML 2.6 earthquake occured in region: 2 km NE Gualdo (MC), on

  • 21-05-2005 12:39:12 (UTC)
  • 21-05-2005 14:39:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0890, 13.3480 at 24 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
Gualdo MC 2 815 815
San Ginesio MC 3 3498 4313
Sant'Angelo in Pontano MC 4 1436 5749
Ripe San Ginesio MC 6 852 6601
Sarnano MC 7 3264 9865
Penna San Giovanni MC 7 1108 10973
Cessapalombo MC 8 512 11485
Camporotondo di Fiastrone MC 8 563 12048
Colmurano MC 9 1263 13311
Monte San Martino MC 10 765 14076
Loro Piceno MC 10 2401 16477
Falerone FM 11 3337 19814
Montappone FM 11 1682 21496
Caldarola MC 11 1823 23319
Monte Vidon Corrado FM 12 731 24050
Servigliano FM 12 2336 26386
Amandola FM 12 3629 30015
Belforte del Chienti MC 12 1886 31901
Smerillo FM 12 365 32266
Urbisaglia MC 12 2628 34894
Massa Fermana FM 13 963 35857
Santa Vittoria in Matenano FM 14 1330 37187
Bolognola MC 14 142 37329
Tolentino MC 14 20069 57398
Montefalcone Appennino FM 14 424 57822
Mogliano MC 15 4696 62518
Acquacanina MC 15 121 62639
Monteleone di Fermo FM 15 395 63034
Comunanza AP 16 3166 66200
Belmonte Piceno FM 16 646 66846
Montegiorgio FM 16 6851 73697
Montefortino FM 16 1178 74875
Serrapetrona MC 16 966 75841
Fiastra MC 17 559 76400
Monsampietro Morico FM 17 659 77059
Montelparo FM 17 778 77837
Petriolo MC 18 1998 79835
Force AP 18 1354 81189
Francavilla d'Ete FM 19 964 82153
Montottone FM 20 979 83132
Pollenza MC 20 6618 89750

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
60 Km S of Ancona (100861 inhabitants)
78 Km E of Perugia (166134 inhabitants)
82 Km NE of Terni (111501 inhabitants)
82 Km N of L'Aquila (69753 inhabitants)
88 Km SE of Fano (60888 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
98 Km SE of Pesaro (94582 inhabitants)
99 Km NW of Pescara (121014 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.9
ML 2.6
2005-05-21
12:39:12
43.089 13.348 24 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 519469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-05-21 12:39:12 ± 0.09
Latitude 43.0890 ± 0.0036
Longitude 13.3480 ± 0.0074
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 519469

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 666
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
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) 130
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.15203
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 519469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:04:34

Md:2.9

Field Value
Value 2.9
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 519469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:04:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGG.SHZ. 2005-05-21T12:39:51.20 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHN. 2005-05-21T12:39:44.27 0.3 undecidable manual Sg 298 100.6215 -0.173 33
IV.SDI.SHZ. 2005-05-21T12:39:40.52 10.0 undecidable manual Pg 0 0 0
IV.PGD.SHZ. 2005-05-21T12:39:40.45 10.0 undecidable manual Pg 0 0 0
IV.SFI.SHZ. 2005-05-21T12:39:40.09 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2005-05-21T12:39:38.51 0.1 undecidable manual Sg 326 81.3519 -0.296 45
IV.VVLD.EHZ. 2005-05-21T12:39:37.56 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHZ. 2005-05-21T12:39:36.93 10.0 undecidable manual Pg 0 0 0
IV.CRE.SHZ. 2005-05-21T12:39:35.38 0.3 undecidable manual Pn 298 127.0728 0.717 53
IV.MURB.HHZ. 2005-05-21T12:39:35.61 0.1 undecidable manual Sg 286 69.375 0.259 46
IV.INTR.HHZ. 2005-05-21T12:39:34.48 0.3 undecidable manual Pn 159 127.872 -0.278 62
IV.RSM.SHZ. 2005-05-21T12:39:34.90 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2005-05-21T12:39:34.59 10.0 undecidable manual Pg 0 0 0
IV.CAMP.EHZ. 2005-05-21T12:39:33.10 0.3 undecidable manual Sg 175 61.5939 -0.003 37
IV.SACS.HHZ. 2005-05-21T12:39:33.56 0.1 undecidable manual Pn 258 119.7912 0.079 87
IV.TERO.HHZ. 2005-05-21T12:39:32.07 0.1 undecidable manual Sg 158 55.6998 0.619 43
IV.LNSS.EHZ. 2005-05-21T12:39:32.50 0.1 undecidable manual Sg 205 59.3961 -0.006 49
IV.AOI.EHN. 2005-05-21T12:39:31.33 0.3 undecidable manual Sg 22 55.1004 0.046 36
IV.ARV.SHZ. 2005-05-21T12:39:31.33 0.3 undecidable manual Sg 324 55.9995 -0.209 36
IV.ASS.SHZ. 2005-05-21T12:39:31.79 0.3 undecidable manual Sg 267 56.499 0.112 37
IV.BADI.EHN. 2005-05-21T12:39:30.17 0.1 undecidable manual Pn 298 100.6215 -0.145 88
IV.MNS.SHZ. 2005-05-21T12:39:29.04 0.3 undecidable manual Pg 215 95.1381 -0.37 64
IV.FAGN.EHN. 2005-05-21T12:39:29.36 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2005-05-21T12:39:28.31 0.1 undecidable manual Pg 192 92.9403 -0.753 75
IV.USI.SHZ. 2005-05-21T12:39:28.63 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2005-05-21T12:39:28.44 0.1 undecidable manual Pg 152 86.8464 0.39 86
IV.AQU.SHZ. 2005-05-21T12:39:27.45 0.3 undecidable manual Pg 177 81.6516 0.246 67
IV.FSSB.SHZ. 2005-05-21T12:39:26.95 0.1 undecidable manual Pg 326 81.3519 -0.202 91
IV.SNTG.SHZ. 2005-05-21T12:39:26.32 0.3 undecidable manual Sg 299 37.8288 -0.218 36
IV.CING.HHZ. 2005-05-21T12:39:25.29 0.1 undecidable manual Sg 339 34.1436 -0.299 49
IV.MURB.HHZ. 2005-05-21T12:39:25.42 0.3 undecidable manual Pg 286 69.375 0.213 70
IV.ARV.SHZ. 2005-05-21T12:39:23.01 0.1 positive manual Pg 324 55.9995 -0.055 98
IV.ASS.SHZ. 2005-05-21T12:39:23.11 0.1 negative manual Pg 267 56.499 -0.036 98
IV.LNSS.EHZ. 2005-05-21T12:39:23.61 0.1 positive manual Pg 205 59.3961 -0.002 98
IV.CAMP.EHZ. 2005-05-21T12:39:23.69 0.1 positive manual Pg 175 61.5939 -0.256 93
IV.TERO.HHZ. 2005-05-21T12:39:22.84 0.1 undecidable manual Pg 158 55.6998 -0.178 96
IV.AOI.EHN. 2005-05-21T12:39:22.92 0.1 undecidable manual Pg 22 55.1004 -0.002 99
IV.SNTG.SHZ. 2005-05-21T12:39:20.47 0.1 negative manual Pg 299 37.8288 0.211 99
IV.NRCA.SHZ. 2005-05-21T12:39:20.04 0.1 positive manual Pg 214 34.1436 0.318 97
IV.CING.HHZ. 2005-05-21T12:39:19.87 0.1 positive manual Pg 339 34.1436 0.147 100
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