Earthquake with magnitude of ML 1.8 on date 22-09-2022 and time 15:03:31 (UTC) in region 1 km NE Bargagli (GE)

A magnitude ML 1.8 earthquake occured in region: 1 km NE Bargagli (GE), on

  • 22-09-2022 15:03:31 (UTC)
  • 22-09-2022 17:03:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4520, 9.0940 at 7 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
Bargagli GE 1 2708 2708
Davagna GE 2 1884 4592
Lumarzo GE 4 1535 6127
Uscio GE 7 2284 8411
Neirone GE 8 916 9327
Montoggio GE 8 2067 11394
Bogliasco GE 8 4488 15882
Pieve Ligure GE 9 2544 18426
Sori GE 9 4205 22631
Tribogna GE 9 614 23245
Torriglia GE 9 2311 25556
Avegno GE 9 2525 28081
Moconesi GE 10 2614 30695
Sant'Olcese GE 11 5906 36601
Recco GE 11 9752 46353
Casella GE 12 3144 49497
Valbrevenna GE 12 798 50295
Cicagna GE 12 2502 52797
Camogli GE 13 5378 58175
Favale di Malvaro GE 13 466 58641
Genova GE 14 586655 645296
Serra Riccò GE 14 7885 653181
Lorsica GE 15 468 653649
Propata GE 15 142 653791
Savignone GE 15 3205 656996
Montebruno GE 15 240 657236
Orero GE 15 565 657801
Coreglia Ligure GE 15 285 658086
Rapallo GE 16 29796 687882
Rondanina GE 16 62 687944
Santa Margherita Ligure GE 16 9338 697282
Crocefieschi GE 16 548 697830
Mignanego GE 17 3675 701505
Ceranesi GE 17 3875 705380
Fascia GE 17 81 705461
Vobbia GE 17 409 705870
Campomorone GE 17 6996 712866
Busalla GE 18 5563 718429
Portofino GE 19 420 718849
Zoagli GE 19 2472 721321
San Colombano Certenoli GE 20 2683 724004
Carrega Ligure AL 20 84 724088
Fontanigorda GE 20 277 724365

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Genova (586655 inhabitants)
51 Km E of Savona (61345 inhabitants)
64 Km SE of Alessandria (93943 inhabitants)
70 Km NW of La Spezia (93959 inhabitants)
82 Km S of Pavia (72576 inhabitants)
82 Km SW of Piacenza (102191 inhabitants)
86 Km SE of Asti (76202 inhabitants)
90 Km W of Carrara (63133 inhabitants)
95 Km W of Massa (69479 inhabitants)
98 Km S of Vigevano (63310 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 1.8 2022-09-22
15:03:31
44.4523 9.0943 7 2022-09-22
15:34:06
Sala Sismica INGV-Roma 110010811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-22 15:03:31 ± 0.13
Latitude 44.4523 ± 0.0117
Longitude 9.0943 ± 0.0113
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110010811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1363
Semi-minor axis of confidence ellipse (meter) 608
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.42453
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.5
Num. used stations 12
Type of magnitude ML
Reference to an origin 110010811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-22 15:34:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2022-09-22T15:05:22.99 3.0 undecidable manual Pn 3.66 0
IV.FAGN.HHZ. 2022-09-22T15:05:16.50 3.0 undecidable manual Sn -0.81 0
IV.MCRV.HHZ. 2022-09-22T15:05:14.93 3.0 undecidable manual Pg 18.65 0
IV.RM33.EHZ. 2022-09-22T15:05:14.55 3.0 undecidable manual Sn 6.11 0
IV.CDRU.HHZ. 2022-09-22T15:05:06.43 3.0 undecidable manual Pn 6.42 0
IV.SENI.EHZ. 2022-09-22T15:04:57.29 3.0 undecidable manual Sn 0.35 0
OX.CIMO.HHZ. 2022-09-22T15:04:57.29 3.0 undecidable manual Sn 0.83 0
IV.CRND.HNZ. 2022-09-22T15:04:50.53 3.0 undecidable manual Sg 6.81 0
OX.CLUD.HHZ. 2022-09-22T15:04:35.94 3.0 negative manual Pg 12.24 0
IV.CELB.HHZ. 2022-09-22T15:04:25.90 3.0 undecidable manual Sn -0.25 0
GU.TRAV.HHZ. 2022-09-22T15:03:59.27 0.6 undecidable manual P 319 1.4245 50 0.97 28
GU.BHB.HHZ. 2022-09-22T15:03:54.81 1.0 positive manual P 287 1.3571 50 -2.34 5
GU.EQUI.HHZ. 2022-09-22T15:03:47.85 1.0 negative manual P 110 0.8094 50 0.08 22
GU.CANO.HHZ. 2022-09-22T15:03:46.18 0.6 positive manual P 249 0.6601 50 0.97 34
IV.PLMA.HHZ. 2022-09-22T15:03:45.59 0.6 undecidable manual P 126 0.6763 50 0.1 44
IV.BOB.HHE. 2022-09-22T15:03:40.81 0.1 undecidable manual P 38 0.4038 50 -0.02 95
GU.GORR.HHZ. 2022-09-22T15:03:40.39 0.6 undecidable manual S 42 0.2095 106 0.06 49
GU.PCP.HHZ. 2022-09-22T15:03:39.84 0.3 negative manual P 283 0.4011 50 -0.95 54
IV.MSSA.HHZ. 2022-09-22T15:03:39.05 0.6 positive manual P 114 0.3310 100 -0.38 45
IT.GNV.HGZ. 2022-09-22T15:03:37.01 0.6 undecidable manual S 260 0.1178 117 -0.01 51
GU.GENL.EHZ. 2022-09-22T15:03:36.33 0.6 undecidable manual S 242 0.1007 121 -0.11 50
GU.GORR.HHZ. 2022-09-22T15:03:36.80 0.1 undecidable manual P 42 0.2095 106 0.02 99
GU.RNCA.HHZ. 2022-09-22T15:03:36.40 0.6 undecidable manual S 280 0.1034 120 -0.15 49
GU.GENL.EHZ. 2022-09-22T15:03:34.64 0.1 undecidable manual P 242 0.1007 121 0.11 99
GU.RNCA.HHZ. 2022-09-22T15:03:34.67 0.1 undecidable manual P 280 0.1034 120 0.07 100
IT.GNV.HGZ. 2022-09-22T15:03:34.99 0.3 undecidable manual P 260 0.1178 117 0.12 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GENL.EHE. ML:1.9 0.00121 0.14 AML other m 2022-09-22T15:03:36.52
GU.GENL.EHN. ML:1.7 0.00076 0.56 AML other m 2022-09-22T15:03:36.49
GU.RNCA.HHN. ML:2.2 0.00213 0.18 AML other m 2022-09-22T15:03:36.53
GU.RNCA.HHE. ML:2.2 0.002105 0.1 AML other m 2022-09-22T15:03:36.70
IT.GNV.HGN. ML:3.6 0.04505 0.2 AML other m 2022-09-22T15:03:37.26
IT.GNV.HGE. ML:3.8 0.06955 0.38 AML other m 2022-09-22T15:03:37.15
GU.GORR.HHE. ML:1.6 0.000244 1.08 AML other m 2022-09-22T15:03:41.66
GU.GORR.HHN. ML:1.6 0.000247 0.28 AML other m 2022-09-22T15:03:41.17
GU.PCP.HHE. ML:1.2 0.00004475 1.06 AML other m 2022-09-22T15:03:48.34
GU.PCP.HHN. ML:1.1 0.000037449999999999995 1.16 AML other m 2022-09-22T15:03:50.41
IV.PLMA.HHN. ML:1.8 0.00008355 1.2 AML other m 2022-09-22T15:03:56.96
IV.PLMA.HHE. ML:1.6 0.00006675000000000001 0.72 AML other m 2022-09-22T15:03:57.40
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