Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 22-03-2023 and time 14:41:49 (UTC) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.2 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 22-03-2023 14:41:49 (UTC)
  • 22-03-2023 15:41:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9110, 15.4490 at 10 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.

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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
Santa Teresa di Riva ME 8 9377 9377
Furci Siculo ME 8 3382 12759
Roccalumera ME 9 4141 16900
Sant'Alessio Siculo ME 9 1554 18454
Nizza di Sicilia ME 10 3667 22121
Forza d'Agrò ME 10 911 23032
Alì Terme ME 11 2539 25571
Savoca ME 11 1732 27303
Pagliara ME 12 1170 28473
Casalvecchio Siculo ME 12 842 29315
Letojanni ME 13 2861 32176
Alì ME 13 768 32944
Gallodoro ME 14 367 33311
Fiumedinisi ME 14 1409 34720
Scaletta Zanclea ME 15 2140 36860
Mongiuffi Melia ME 15 600 37460
Mandanici ME 15 601 38061
Itala ME 16 1640 39701
Limina ME 16 836 40537
Taormina ME 16 10960 51497
Roccafiorita ME 16 197 51694
Castelmola ME 16 1088 52782
Giardini-Naxos ME 17 9415 62197
Antillo ME 19 919 63116
Graniti ME 20 1492 64608

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Reggio di Calabria (183035 inhabitants)
33 Km S of Messina (238439 inhabitants)
41 Km NE of Acireale (52622 inhabitants)
55 Km NE of Catania (314555 inhabitants)
96 Km N of Siracusa (122291 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
Reviewed
Rev100 		ML 1.2 2023-03-22
14:41:49		 37.9107 15.4488 10 2023-03-22
15:35:31		 Sala Sismica INGV-Roma 115631851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-22 14:41:49 ± 0.11
Latitude 37.9107 ± 0.0054
Longitude 15.4488 ± 0.0046
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115631851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 76
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47214
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 115631851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-22 15:35:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2023-03-22T14:42:27.37 3.0 undecidable manual S -0.09 0
IV.MSRU.HHZ. 2023-03-22T14:42:02.45 0.6 undecidable manual S 8 0.3561 50 0.18 49
IV.ECTS.HHZ. 2023-03-22T14:41:59.68 0.6 undecidable manual S 264 0.2599 50 0.25 50
IV.MTTG.HHZ. 2023-03-22T14:41:58.39 1.0 undecidable manual S 65 0.2185 112 0.26 25
IV.MUCR.HHZ. 2023-03-22T14:41:58.78 1.0 undecidable manual P 286 0.4721 50 0.13 24
IV.MPNC.HHZ. 2023-03-22T14:41:58.99 0.6 undecidable manual S 342 0.2473 50 -0.06 52
IV.EPMN.HHZ. 2023-03-22T14:41:58.54 0.6 undecidable manual S 247 0.2320 50 -0.07 52
IV.AIO.HHZ. 2023-03-22T14:41:56.97 0.3 undecidable manual S 290 0.1808 117 0.17 77
IV.MSRU.HHZ. 2023-03-22T14:41:56.63 1.0 undecidable manual P 8 0.3561 50 -0.04 25
IV.MRCB.HHE. 2023-03-22T14:41:56.42 1.0 undecidable manual P 38 0.3211 50 0.35 24
IV.MPNC.HHZ. 2023-03-22T14:41:54.59 0.1 undecidable manual P 342 0.2473 50 -0.22 100
IV.EPMN.HHZ. 2023-03-22T14:41:54.66 0.6 undecidable manual P 247 0.2320 50 0.1 51
IV.MTTG.HHZ. 2023-03-22T14:41:54.21 0.6 positive manual P 65 0.2185 112 -0.07 52
IV.ECTS.HHZ. 2023-03-22T14:41:54.87 0.6 undecidable manual P 264 0.2599 50 -0.16 51
IV.AIO.HHZ. 2023-03-22T14:41:53.22 0.6 positive manual P 290 0.1808 117 -0.3 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:1.3 0.000154 1.76 AML other m 2023-03-22T14:41:57.09
IV.AIO.HHN. ML:1.5 0.00022749999999999997 0.26 AML other m 2023-03-22T14:41:57.84
IV.MPNC.HHE. ML:1.4 0.00013450000000000002 1.54 AML other m 2023-03-22T14:42:00.92
IV.MPNC.HHN. ML:1.2 0.000084888965 0.5376 AML other m 2023-03-22T14:41:59.57
IV.MTTG.HHE. ML:0.7 0.000032056145 0.8192 AML other m 2023-03-22T14:41:58.38
IV.MTTG.HHN. ML:1.0 0.00005576574499999999 0.704 AML other m 2023-03-22T14:41:58.86
IV.MSRU.HHE. ML:1.2 0.00005219705 0.224 AML other m 2023-03-22T14:42:03.81
IV.MSRU.HHN. ML:1.2 0.00006096194 0.1792 AML other m 2023-03-22T14:42:03.73
IV.MUCR.HHE. ML:1.1 0.00003128625 0.3648 AML other m 2023-03-22T14:42:07.28
IV.MUCR.HHN. ML:1.1 0.00003106182 0.5568 AML other m 2023-03-22T14:42:10.27
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