Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 26-02-2018 and time 09:30:21 (UTC) in region 8 km W Bardi (PR)

A magnitude ML 1.5 earthquake occured in region: 8 km W Bardi (PR), on

  • 26-02-2018 09:30:21 (UTC)
  • 26-02-2018 10:30:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6300, 9.6270 at 10 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.

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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
Bardi PR 8 2227 2227
Ferriere PC 10 1294 3521
Farini PC 10 1290 4811
Morfasso PC 12 1024 5835
Bedonia PR 14 3482 9317
Compiano PR 15 1112 10429
Tornolo PR 16 1010 11439
Santo Stefano d'Aveto GE 17 1126 12565
Bettola PC 17 2828 15393
Bore PR 17 749 16142
Varsi PR 18 1230 17372
Borgo Val di Taro PR 19 6999 24371

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km S of Piacenza (102191 inhabitants)
59 Km W of Parma (192836 inhabitants)
60 Km E of Genova (586655 inhabitants)
60 Km N of La Spezia (93959 inhabitants)
64 Km SW of Cremona (71901 inhabitants)
72 Km NW of Carrara (63133 inhabitants)
72 Km SE of Pavia (72576 inhabitants)
78 Km NW of Massa (69479 inhabitants)
80 Km W of Reggio nell'Emilia (171345 inhabitants)
86 Km E of Alessandria (93943 inhabitants)
97 Km SE of Vigevano (63310 inhabitants)
98 Km E of Savona (61345 inhabitants)
98 Km NW of Viareggio (62467 inhabitants)
99 Km SE of Milano (1345851 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.5 2018-02-26
09:30:21		 44.6297 9.6268 10 2019-04-24
14:49:28		 Bollettino Sismico Italiano INGV 56032681
Reviewed
Rev100 		ML 1.5 2018-02-26
09:30:21		 44.6278 9.6263 10 2018-02-26
09:41:48		 Sala Sismica INGV-Roma 54171731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-26 09:30:21 ± 0.1
Latitude 44.6297 ± 0.0090
Longitude 9.6268 ± 0.0051
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56032681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 945
Semi-minor axis of confidence ellipse (meter) 445
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 9
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) 0.50632
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 56032681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-24 09:02:41

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 54171731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-26 09:41:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1299.EHZ. 2018-02-26T09:31:38.76 3.0 undecidable manual Sn 6.71 0
IV.GAG1.HNZ. 2018-02-26T09:31:34.87 3.0 undecidable manual Sg 16.85 0
IV.PIEI.HHZ. 2018-02-26T09:31:19.69 3.0 undecidable manual Sg 13.29 0
IV.GAG1.HNZ. 2018-02-26T09:30:41.01 3.0 undecidable manual Pn 1.45 0
GU.GRAM.HHZ. 2018-02-26T09:30:34.68 0.6 undecidable manual S 114 37.9287 50 0.05 48
IV.MSSA.HHE. 2018-02-26T09:30:33.86 0.3 undecidable manual S 194 35.8419 50 -0.21 70
GU.RNCA.HHZ. 2018-02-26T09:30:32.25 0.3 undecidable manual P 252 56.1993 50 0.21 68
GU.GORR.HHZ. 2018-02-26T09:30:31.56 0.6 undecidable manual S 265 26.5512 50 -0.03 50
GU.GRAM.HHZ. 2018-02-26T09:30:29.16 0.1 undecidable manual P 114 37.9287 50 -0.06 96
IV.MSSA.HHE. 2018-02-26T09:30:29.14 0.3 undecidable manual P 194 35.8419 50 0.24 70
IV.BOB.HNE. 2018-02-26T09:30:29.85 0.3 undecidable manual S 317 20.868 116 -0.03 75
GU.GORR.HHZ. 2018-02-26T09:30:27.41 0.1 undecidable manual P 265 26.5512 50 -0.05 99
IV.BOB.HNE. 2018-02-26T09:30:26.45 0.1 undecidable manual P 317 20.868 116 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHE. ML:1.4 0.000153 1.82 AML other m 2018-02-26T09:30:31.98
GU.GORR.HHN. ML:1.4 0.0001375 0.72 AML other m 2018-02-26T09:30:33.79
GU.GRAM.HHE. ML:1.9 0.000265 0.22 AML other m 2018-02-26T09:30:35.86
GU.GRAM.HHN. ML:1.8 0.000237 1.08 AML other m 2018-02-26T09:30:36.91
GU.RNCA.HHE. ML:1.4 0.0000592 0.86 AML other m 2018-02-26T09:30:40.11
GU.RNCA.HHN. ML:1.2 0.00003845 0.6 AML other m 2018-02-26T09:30:40.63
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download