Earthquake with magnitude of ML 1.3 on date 31-03-2019 and time 16:25:22 (UTC) in region 3 km NW Zafferana Etnea (CT)

A magnitude ML 1.3 earthquake occured in region: 3 km NW Zafferana Etnea (CT), on

  • 31-03-2019 16:25:22 (UTC)
  • 31-03-2019 18:25:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.72, 15.08 at 9 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
Zafferana Etnea CT 3 9517 9517
Milo CT 3 1087 10604
Santa Venerina CT 6 8592 19196
Sant'Alfio CT 6 1582 20778
Giarre CT 9 27659 48437
Riposto CT 11 14838 63275
Trecastagni CT 11 10910 74185
Mascali CT 11 14282 88467
Pedara CT 11 14102 102569
Viagrande CT 12 8563 111132
Nicolosi CT 12 7463 118595
Aci Sant'Antonio CT 13 17984 136579
Piedimonte Etneo CT 13 3963 140542
Aci Bonaccorsi CT 13 3524 144066
Aci Catena CT 14 29851 173917
Acireale CT 14 52622 226539
Fiumefreddo di Sicilia CT 14 9623 236162
Linguaglossa CT 15 5403 241565
San Giovanni la Punta CT 16 23060 264625
Tremestieri Etneo CT 16 20589 285214
Valverde CT 16 7840 293054
Ragalna CT 16 3924 296978
Mascalucia CT 16 31958 328936
Belpasso CT 17 28108 357044
San Pietro Clarenza CT 17 7743 364787
San Gregorio di Catania CT 17 11966 376753
Gravina di Catania CT 17 25838 402591
Sant'Agata li Battiati CT 18 9479 412070
Calatabiano CT 18 5308 417378
Camporotondo Etneo CT 18 5023 422401
Aci Castello CT 19 18723 441124
Castiglione di Sicilia CT 19 3215 444339

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Acireale (52622 inhabitants)
24 Km N of Catania (314555 inhabitants)
66 Km SW of Reggio di Calabria (183035 inhabitants)
68 Km SW of Messina (238439 inhabitants)
75 Km N of Siracusa (122291 inhabitants)
93 Km E of Caltanissetta (63360 inhabitants)
93 Km NE of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 inhabitants)
99 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 1.3 2019-03-31
16:25:22
37.72 15.08 9 2019-08-22
08:24:56
Bollettino Sismico Italiano INGV 67670141
Reviewed
Rev100
ML 2.0 2019-03-31
16:25:21
37.68 15.15 6 2019-03-31
16:35:17
Sala Sismica INGV-Roma 67119141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-31 16:25:22 ± 0.06
Latitude 37.72 ± 0.00
Longitude 15.08 ± 0.01
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67670141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 295
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.55938
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 67670141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-17 09:09:11

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 67119141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-31 16:35:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2019-03-31T16:25:46.67 3.0 undecidable manual S -0.05 0
IV.HAGA.HHZ. 2019-03-31T16:25:38.10 0.6 undecidable manual S 172 0.4362 50 0.26 46
IV.HLNI.HHZ. 2019-03-31T16:25:36.70 0.3 undecidable manual S 204 0.4047 50 -0.21 70
IV.SSY.HNN. 2019-03-31T16:25:33.24 0.3 undecidable manual P 181 0.5594 50 -0.03 70
IV.MPNC.HHN. 2019-03-31T16:25:31.66 0.6 undecidable manual P 26 0.4793 50 -0.24 45
IV.HAGA.HHZ. 2019-03-31T16:25:30.94 0.6 undecidable manual P 172 0.4362 50 -0.22 46
IV.MUCR.HHE. 2019-03-31T16:25:30.50 0.3 undecidable manual P 333 0.3642 50 0.56 64
IV.HLNI.HHZ. 2019-03-31T16:25:30.58 0.1 undecidable manual P 204 0.4047 50 -0.04 96
IV.NOV.HHZ. 2019-03-31T16:25:29.20 0.6 undecidable manual P 8 0.313 50 0.14 48
IV.AIO.HHZ. 2019-03-31T16:25:28.39 0.1 undecidable manual P 25 0.2806 50 -0.11 97
IV.EMSG.HHZ. 2019-03-31T16:25:28.80 1.0 undecidable manual S 315 0.1466 119 0.31 24
IV.EPOZ.HHZ. 2019-03-31T16:25:27.20 0.3 undecidable manual S 118 0.0962 130 0.34 72
IV.EPIT.HHN. 2019-03-31T16:25:27.10 0.3 undecidable manual S 348 0.0962 130 0.23 74
IV.EPZF.HHZ. 2019-03-31T16:25:27.32 0.6 undecidable manual P 301 0.2068 111 0.35 47
IV.ENIC.HHE. 2019-03-31T16:25:27.20 0.3 undecidable manual S 209 0.098 130 0.27 73
IV.EMCN.HNE. 2019-03-31T16:25:26.10 0.6 undecidable manual S 333 0.0827 134 -0.4 47
IV.EMSG.HHZ. 2019-03-31T16:25:26.06 0.3 undecidable manual P 315 0.1466 119 0.31 72
IV.ESLN.HHZ. 2019-03-31T16:25:26.40 0.3 undecidable manual S 254 0.0881 133 -0.24 74
IV.ENIC.HHE. 2019-03-31T16:25:25.01 1.0 undecidable manual P 209 0.098 130 0.16 25
IV.EVRN.HNN. 2019-03-31T16:25:25.70 0.6 undecidable manual S 123 0.0513 148 -0.02 52
IV.ECTS.EHZ. 2019-03-31T16:25:25.79 0.1 undecidable manual P 11 0.1673 116 -0.37 94
IV.EPOZ.HHZ. 2019-03-31T16:25:24.95 0.6 undecidable manual P 118 0.0962 130 0.13 50
IV.ESLN.HHZ. 2019-03-31T16:25:24.40 0.6 undecidable manual P 254 0.0881 133 -0.29 49
IV.EPIT.HHN. 2019-03-31T16:25:24.96 0.1 undecidable manual P 348 0.0962 130 0.14 100
IV.EMCN.HNE. 2019-03-31T16:25:24.39 0.1 undecidable manual P 333 0.0827 134 -0.22 99
IV.EVRN.HNN. 2019-03-31T16:25:23.81 0.3 undecidable manual P 123 0.0513 148 -0.35 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHE. ML:2 0.0009487896 0.6656 AML other m 2019-03-31T16:25:32.05
IV.ECTS.EHE. ML:1.3 0.00016585815 0.2432 AML other m 2019-03-31T16:25:32.52
IV.EPZF.HHN. ML:1.9 0.00053546015 1.2544 AML other m 2019-03-31T16:25:37.48
IV.AIO.HHE. ML:1.1 5.813809E-5 0.2176 AML other m 2019-03-31T16:25:33.95
IV.EPZF.HHE. ML:1.9 0.00055193965 1.0752 AML other m 2019-03-31T16:25:36.56
IV.AIO.HHN. ML:1.1 5.5270305E-5 0.4992 AML other m 2019-03-31T16:25:37.36
IV.HLNI.HHN. ML:0.8 1.8747075E-5 0.128 AML other m 2019-03-31T16:25:37.09
IV.HLNI.HHE. ML:0.8 1.96308E-5 0.2176 AML other m 2019-03-31T16:25:39.87
IV.EMSG.HHN. ML:1.7 0.0005396214 0.192 AML other m 2019-03-31T16:25:34.19
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download