INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.5 on date 15-05-2018 and time 11:41:50 (Italy) in region 5 km W Montemesola (TA)

A magnitude ML 1.5 earthquake occured in region: 5 km W Montemesola (TA), on

  • 15-05-2018 09:41:50 (UTC)
  • 15-05-2018 11:41:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.57, 17.28 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Montemesola TA 5 3949 3949
Crispiano TA 6 13802 17751
Statte TA 7 13983 31734
Taranto TA 11 201100 232834
Monteiasi TA 11 5623 238457
Grottaglie TA 13 32234 270691
Massafra TA 14 33003 303694
San Giorgio Ionico TA 15 15344 319038
Carosino TA 15 7010 326048
Martina Franca TA 16 49118 375166
Villa Castelli BR 17 9305 384471
Roccaforzata TA 17 1827 386298
Monteparano TA 18 2441 388739
Faggiano TA 19 3542 392281

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of Taranto (201100 inhabitants)
57 Km W of Brindisi (88302 inhabitants)
58 Km E of Matera (60436 inhabitants)
68 Km E of Altamura (70396 inhabitants)
71 Km SE of Bari (326344 inhabitants)
78 Km SE of Bitonto (55540 inhabitants)
79 Km W of Lecce (94773 inhabitants)
91 Km SE of Molfetta (59874 inhabitants)
99 Km SE of Bisceglie (55422 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.5 2018-05-15
09:41:50
40.57 17.28 9 2018-05-15
10:14:01
Sala Sismica INGV-Roma 56887721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-15 09:41:50 ± 0.28
Latitude 40.57 ± 0.01
Longitude 17.28 ± 0.03
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56887721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2329
Semi-minor axis of confidence ellipse (meter) 576
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 2330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 209
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.44247
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 56887721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-15 10:14:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.MATE.HHZ. 2018-05-15T09:42:06.52 0.6 undecidable manual S 281 0.4425 50 0.2 46
IV.LTRZ.EHZ. 2018-05-15T09:42:03.62 0.1 undecidable manual S 276 0.3498 50 0.04 98
IV.NOCI.HHZ. 2018-05-15T09:42:01.18 0.3 undecidable manual S 324 0.2725 106 -0.01 75
GE.MATE.HHZ. 2018-05-15T09:41:59.40 0.1 negative manual P 281 0.4425 50 -0.13 94
IV.LTRZ.EHZ. 2018-05-15T09:41:57.81 0.3 positive manual P 276 0.3498 50 -0.14 72
IV.NOCI.HHZ. 2018-05-15T09:41:56.58 0.6 positive manual P 324 0.2725 106 0.01 50
OT.TAR1.HHZ. 2018-05-15T09:41:53.48 0.6 undecidable manual S 173 0.0432 151 -0.25 50
OT.TAR1.HHZ. 2018-05-15T09:41:52.47 0.1 positive manual P 173 0.0432 151 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.TAR1.HHE. ML:2.4 0.004543633 0.2816 AML other m 2018-05-15T09:41:54.87
OT.TAR1.HHN. ML:2.1 0.0025589875 0.2368 AML other m 2018-05-15T09:41:54.93
IV.NOCI.HHE. ML:1.7 0.00026504685 0.2432 AML other m 2018-05-15T09:42:03.58
IV.NOCI.HHN. ML:1.6 0.00019168145 0.32 AML other m 2018-05-15T09:42:06.97
GE.MATE.HHN. ML:1.3 5.7300845E-5 0.3776 AML other m 2018-05-15T09:42:10.56
GE.MATE.HHE. ML:1.3 5.2285895E-5 0.3008 AML other m 2018-05-15T09:42:07.06
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download