Earthquake with magnitude of ML 0.2 on date 24-09-2022 and time 05:34:44 (Italy) in region 2 km SW Erli (SV)

A magnitude ML 0.2 earthquake occured in region: 2 km SW Erli (SV), on

  • 24-09-2022 03:34:44 (UTC)
  • 24-09-2022 05:34:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1270, 8.0910 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Erli SV 2 245 245
Castelbianco SV 2 330 575
Castelvecchio di Rocca Barbena SV 2 145 720
Zuccarello SV 3 309 1029
Nasino SV 5 207 1236
Arnasco SV 6 645 1881
Vendone SV 6 388 2269
Cisano sul Neva SV 6 2085 4354
Balestrino SV 7 595 4949
Onzo SV 7 219 5168
Alto CN 7 128 5296
Bardineto SV 8 756 6052
Ortovero SV 8 1586 7638
Aquila d'Arroscia IM 8 166 7804
Garessio CN 9 3244 11048
Toirano SV 9 2644 13692
Ranzo IM 10 557 14249
Villanova d'Albenga SV 10 2657 16906
Garlenda SV 10 1254 18160
Boissano SV 11 2492 20652
Caprauna CN 11 104 20756
Casanova Lerrone SV 11 749 21505
Borghetto d'Arroscia IM 12 456 21961
Ceriale SV 12 5561 27522
Borghetto Santo Spirito SV 12 4948 32470
Calizzano SV 12 1475 33945
Albenga SV 13 24213 58158
Giustenice SV 14 977 59135
Vessalico IM 14 282 59417
Loano SV 14 11407 70824
Testico SV 14 196 71020
Stellanello SV 14 808 71828
Priola CN 14 701 72529
Ormea CN 15 1617 74146
Magliolo SV 15 974 75120
Armo IM 15 111 75231
Alassio SV 15 10934 86165
Tovo San Giacomo SV 15 2582 88747
Pietra Ligure SV 16 8992 97739
Cesio IM 16 283 98022
Pieve di Teco IM 17 1338 99360
Villa Faraldi IM 18 444 99804
Borgio Verezzi SV 18 2205 102009
Laigueglia SV 18 1810 103819
Rialto SV 18 564 104383
Caravonica IM 18 282 104665
Pornassio IM 19 685 105350
Calice Ligure SV 19 1730 107080
Chiusanico IM 19 607 107687
Andora SV 19 7552 115239
Osiglia SV 19 444 115683
Massimino SV 19 113 115796
Chiusavecchia IM 20 577 116373
Bagnasco CN 20 1035 117408

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Savona (61345 inhabitants)
42 Km NE of Sanremo (54807 inhabitants)
52 Km SE of Cuneo (56081 inhabitants)
74 Km W of Genova (586655 inhabitants)
87 Km S of Asti (76202 inhabitants)
97 Km SW of Alessandria (93943 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 0.2 2022-09-24
03:34:44
44.1267 8.0908 10 2022-09-24
03:45:50
Sala Sismica INGV-Roma 110080251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-24 03:34:44 ± 0.27
Latitude 44.1267 ± 0.0279
Longitude 8.0908 ± 0.0238
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110080251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3330
Semi-minor axis of confidence ellipse (meter) 1420
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 335
Circular confidence region, given by single value of horizontal uncertainty (meter) 3330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.21314
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 110080251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-24 03:45:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CANO.HHZ. 2022-09-24T03:34:50.26 0.1 undecidable manual S 52 0.1322 124 -0.29 96
GU.GBOS.HHZ. 2022-09-24T03:34:49.54 0.1 undecidable manual P 303 0.2131 113 0 100
GU.CANO.HHZ. 2022-09-24T03:34:48.36 0.1 undecidable manual P 52 0.1322 124 0.41 93
GU.RORO.HHZ. 2022-09-24T03:34:47.59 0.1 undecidable manual S 231 0.0225 166 -0.37 96
GU.RORO.HHZ. 2022-09-24T03:34:46.72 0.1 undecidable manual P 231 0.0225 166 0.27 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHE. ML:0.6 0.000038714385 0.9216 AML other m 2022-09-24T03:34:50.80
GU.CANO.HHN. ML:0.2 0.000015050324500000001 0.08 AML other m 2022-09-24T03:34:50.38
GU.GBOS.HHE. ML:0.2 0.000010922067000000001 0.6208 AML other m 2022-09-24T03:34:52.31
GU.GBOS.HHN. ML:-0.1 0.000007494709500000001 0.8416 AML other m 2022-09-24T03:34:52.99
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, http://terremoti.ingv.it/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