Earthquake with magnitude of ML 2.8 on date 03-04-2018 and time 04:46:19 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 03-04-2018 04:46:19 (UTC)
  • 03-04-2018 06:46:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4780, 12.4790 at 32 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km N of Trapani (68759 inhabitants)
75 Km N of Marsala (83194 inhabitants)
87 Km W of Palermo (674435 inhabitants)
92 Km N of Mazara del Vallo (51718 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
ML 2.8 2018-04-03
04:46:19
38.4777 12.4792 32 2019-04-24
14:49:25
Bollettino Sismico Italiano INGV 55739081
Reviewed
Rev100
ML 2.6 2018-04-03
04:46:19
38.5148 12.4397 9 2018-04-03
05:05:01
Sala Sismica INGV-Roma 55065671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-03 04:46:19 ± 0.25
Latitude 38.4777 ± 0.0144
Longitude 12.4792 ± 0.0207
Depth (km) 32 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55739081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1620
Semi-minor axis of confidence ellipse (meter) 1262
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 1620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.44786
Epicentral distance of station farthest from the epicenter (degree) 2.61523
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 55065671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-03 05:05:01

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 55739081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-23 02:18:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.VSL.HHZ. 2018-04-03T04:47:30.25 0.3 undecidable manual S 294 290.2872 54 -0.29 30
MN.VSL.HHZ. 2018-04-03T04:47:00.62 0.1 undecidable manual P 294 290.2872 54 0.01 42
IV.IFIL.HHN. 2018-04-03T04:46:46.59 0.3 undecidable manual P 86 182.1843 54 -0.56 65
IV.MPG.SHZ. 2018-04-03T04:46:45.60 0.6 undecidable manual S 114 84.249 106 0.16 63
IV.MBFT.HHZ. 2018-04-03T04:46:42.10 0.3 undecidable manual S 145 71.9724 109 -0.2 96
IV.USI.HHZ. 2018-04-03T04:46:41.04 0.6 undecidable manual S 67 65.8896 111 0.29 63
IV.MMGO.HHZ. 2018-04-03T04:46:37.43 0.3 undecidable manual P 154 100.4217 103 0.46 86
IV.CAVT.HHN. 2018-04-03T04:46:36.07 1.0 undecidable manual P 165 91.8414 104 0.38 30
IV.SOLUN.HHZ. 2018-04-03T04:46:36.89 0.3 undecidable manual P 115 101.2209 54 -0.19 91
IV.CRJA.HHZ. 2018-04-03T04:46:36.30 0.3 undecidable manual P 148 87.8454 105 1.2 65
IV.ERC.EHZ. 2018-04-03T04:46:36.37 0.6 undecidable manual S 169 49.7169 117 -0.45 63
IV.CORL.HHZ. 2018-04-03T04:46:36.70 0.3 undecidable manual P 132 96.7254 104 0.28 90
IV.MPG.SHZ. 2018-04-03T04:46:34.03 0.3 undecidable manual P 114 84.249 106 -0.54 87
IV.MARS.EHE. 2018-04-03T04:46:34.96 0.6 undecidable manual P 175 80.7636 107 0.92 50
IV.MBFT.HHZ. 2018-04-03T04:46:32.96 0.3 undecidable manual P 145 71.9724 109 0.2 96
IV.USI.HHZ. 2018-04-03T04:46:31.78 0.3 undecidable manual P 67 65.8896 111 -0.08 100
IV.ERC.EHZ. 2018-04-03T04:46:28.37 0.3 undecidable manual P 169 49.7169 117 -1.22 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MBFT.HHN. ML:3.0 0.001349155 0.6016 AML other m 2018-04-03T04:46:43.13
IV.USI.HHE. ML:3.3 0.0032618685000000004 0.4384 AML other m 2018-04-03T04:46:43.24
IV.USI.HHN. ML:3.8 0.010485778500000001 0.5216 AML other m 2018-04-03T04:46:43.64
IV.MBFT.HNE. ML:2.7 0.0007419770999999999 0.32 AML other m 2018-04-03T04:46:46.67
IV.MBFT.HHE. ML:2.9 0.001182731 0.3008 AML other m 2018-04-03T04:46:46.66
IV.MPG.SHN. ML:0.0 0.00029017395 0.56 AML other m 2018-04-03T04:46:53.82
IV.CRJA.HHE. ML:2.9 0.000850777 0.6016 AML other m 2018-04-03T04:46:55.92
IV.MMGO.HHE. ML:2.7 0.00042428424999999996 0.4416 AML other m 2018-04-03T04:46:55.93
IV.MPG.SHE. ML:0.0 0.0003253235 0.5984 AML other m 2018-04-03T04:46:56.84
IV.CORL.HHN. ML:2.8 0.0006966348 0.6208 AML other m 2018-04-03T04:46:57.70
IV.MMGO.HHN. ML:2.6 0.00033026345 0.4608 AML other m 2018-04-03T04:46:58.11
IV.SOLUN.HHN. ML:2.3 0.00016658380000000002 0.4992 AML other m 2018-04-03T04:47:01.34
IV.CORL.HHE. ML:2.7 0.00053696115 1.1584 AML other m 2018-04-03T04:47:01.70
IV.CRJA.HHN. ML:2.6 0.0004896382 0.6592 AML other m 2018-04-03T04:47:02.25
IV.SOLUN.HHE. ML:2.5 0.00029823575000000003 1.0784 AML other m 2018-04-03T04:47:02.71
MN.VSL.HHE. ML:3.0 0.00012215895 0.1792 AML other m 2018-04-03T04:47:32.31
MN.VSL.HHN. ML:2.8 0.000079425335 0.1408 AML other m 2018-04-03T04:47:32.64
IV.AGLI.HHN. ML:2.8 0.000033061725 1.1008 AML other m 2018-04-03T04:47:53.04
IV.AGLI.HHE. ML:3.0 0.000048926175000000004 1.4816 AML other m 2018-04-03T04:48:30.94
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
Waveforms Seismic signals in miniseed + resp format Download