Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 3.0 on date 14-07-2001 and time 03:04:52 (UTC) in region 4 km NE Trecastagni (CT)

A magnitude Md 3.0 earthquake occured in region: 4 km NE Trecastagni (CT), on

  • 14-07-2001 03:04:52 (UTC)
  • 14-07-2001 05:04:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6490, 15.0970 at 5 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Trecastagni CT 4 10910 10910
Viagrande CT 4 8563 19473
Pedara CT 5 14102 33575
Zafferana Etnea CT 5 9517 43092
Aci Sant'Antonio CT 5 17984 61076
Santa Venerina CT 6 8592 69668
Aci Bonaccorsi CT 6 3524 73192
Aci Catena CT 7 29851 103043
Nicolosi CT 7 7463 110506
Acireale CT 7 52622 163128
San Giovanni la Punta CT 8 23060 186188
Valverde CT 8 7840 194028
Tremestieri Etneo CT 8 20589 214617
Milo CT 9 1087 215704
Mascalucia CT 9 31958 247662
San Gregorio di Catania CT 9 11966 259628
Sant'Agata li Battiati CT 10 9479 269107
Gravina di Catania CT 10 25838 294945
San Pietro Clarenza CT 11 7743 302688
Aci Castello CT 11 18723 321411
Sant'Alfio CT 12 1582 322993
Giarre CT 12 27659 350652
Camporotondo Etneo CT 12 5023 355675
Belpasso CT 12 28108 383783
Riposto CT 13 14838 398621
Ragalna CT 14 3924 402545
Mascali CT 15 14282 416827
Catania CT 16 314555 731382
Misterbianco CT 16 49410 780792
Santa Maria di Licodia CT 19 7641 788433
Motta Sant'Anastasia CT 19 12116 800549
Paternò CT 19 48228 848777
Fiumefreddo di Sicilia CT 19 9623 858400
Piedimonte Etneo CT 19 3963 862363

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km NW of Acireale (52622 inhabitants)
16 Km N of Catania (314555 inhabitants)
68 Km N of Siracusa (122291 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
73 Km SW of Messina (238439 inhabitants)
87 Km NE of Ragusa (73313 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
93 Km NE of Modica (54633 inhabitants)
93 Km E of Caltanissetta (63360 inhabitants)
99 Km NE of Gela (75827 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 3.0
ML-VAX 1.7 		2001-07-14
03:04:52		 37.649 15.097 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 423359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-07-14 03:04:52 ± 0.206
Latitude 37.6490 ± 0.0133
Longitude 15.0970 ± 0.0183
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 423359

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) 2186.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00364
Epicentral distance of station farthest from the epicenter (degree) 0.01587
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:3.0

Field Value
Value 3.0
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 423359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:39:16

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 423359
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(km) Takeoff_angle Residual Weight
--.CZI.Z. 2001-07-14T03:05:47.96 10.0 undecidable manual SN 26 1.7649 1.35 0.1
--.SOI.Z. 2001-07-14T03:05:24.66 10.0 undecidable manual SG 60 0.8658 1.19 0.2
--.GRI.Z. 2001-07-14T03:05:22.36 10.0 undecidable manual PN 40 1.5651 1.25 0.4
--.CZI.Z. 2001-07-14T03:05:22.81 10.0 undecidable manual PN 26 1.7649 -1.05 0.5
--.CLTB.Z. 2001-07-14T03:05:21.60 10.0 undecidable manual PN 267 1.4874 0.97 0.6
--.ATN.Z. 2001-07-14T03:05:15.20 10.0 undecidable manual SG 29 0.5883 0.59 0.6
--.MEU.Z. 2001-07-14T03:05:13.79 10.0 undecidable manual SG 201 0.5772 -0.39 0.7
--.SLNA.Z. 2001-07-14T03:05:11.82 10.0 undecidable manual PG 347 0.9213 0.08 1.8
--.GIB.Z. 2001-07-14T03:05:11.36 10.0 undecidable manual PG 292 0.9102 0.05 1.8
--.MNO.Z. 2001-07-14T03:05:10.73 10.0 undecidable manual SG 311 0.4218 1.46 0.1
--.SOI.Z. 2001-07-14T03:05:10.90 10.0 undecidable manual PG 60 0.8658 -0.4 1.7
--.CSLB.Z. 2001-07-14T03:05:10.82 10.0 undecidable manual PG 289 0.8658 0.28 1.8
--.AGST.Z. 2001-07-14T03:05:09.61 10.0 undecidable manual SG 164 0.3996 1.13 0.3
--.SCLL.Z. 2001-07-14T03:05:08.30 10.0 undecidable manual PG 38 0.777 -0.84 1.1
--.GMB.Z. 2001-07-14T03:05:08.56 10.0 undecidable manual PG 47 0.777 -0.26 1.8
--.MTTG.Z. 2001-07-14T03:05:05.47 10.0 undecidable manual PG 52 0.5883 0.04 1.9
--.MEU.Z. 2001-07-14T03:05:04.70 10.0 undecidable manual PG 201 0.5772 -1.06 0.8
--.ATN.Z. 2001-07-14T03:05:04.58 10.0 undecidable manual PG 29 0.5883 -0.7 1.3
--.AGST.Z. 2001-07-14T03:05:02.17 10.0 undecidable manual PG 164 0.3996 0.33 1.7
--.MNO.Z. 2001-07-14T03:05:01.32 10.0 undecidable manual PG 311 0.4218 -0.98 0.9
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