Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 12-08-1997 and time 12:33:10 (Italy) in region 4 km W Filogaso (VV)

A magnitude Md 2.5 earthquake occured in region: 4 km W Filogaso (VV), on

  • 12-08-1997 10:33:10 (UTC)
  • 12-08-1997 12:33:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6660, 16.1850 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
Filogaso VV 4 1417 1417
Maierato VV 5 2188 3605
Sant'Onofrio VV 5 3067 6672
Stefanaconi VV 5 2494 9166
Vazzano VV 6 1067 10233
Pizzoni VV 7 1143 11376
Vibo Valentia VV 7 33941 45317
San Gregorio d'Ippona VV 8 2527 47844
Pizzo VV 8 9278 57122
Soriano Calabro VV 9 2421 59543
Francica VV 9 1651 61194
San Nicola da Crissa VV 9 1335 62529
Sorianello VV 9 1176 63705
Gerocarne VV 9 2248 65953
Capistrano VV 10 1042 66995
Vallelonga VV 10 706 67701
San Costantino Calabro VV 11 2239 69940
Monterosso Calabro VV 11 1729 71669
Dasà VV 11 1208 72877
Arena VV 12 1456 74333
Ionadi VV 12 4238 78571
Acquaro VV 12 2484 81055
Mileto VV 13 6763 87818
Cessaniti VV 13 3290 91108
Filandari VV 14 1853 92961
Francavilla Angitola VV 15 1939 94900
Briatico VV 15 4053 98953
Simbario VV 15 966 99919
Polia VV 15 1023 100942
Spadola VV 15 825 101767
Dinami VV 15 2168 103935
Brognaturo VV 16 735 104670
Serra San Bruno VV 16 6734 111404
Filadelfia VV 16 5384 116788
Torre di Ruggiero CZ 16 1033 117821
San Pietro di Caridà RC 17 1195 119016
Zambrone VV 17 1775 120791
Zungri VV 17 1976 122767
Rombiolo VV 18 4569 127336
Cardinale CZ 18 2188 129524
San Calogero VV 18 4315 133839
Serrata RC 18 845 134684
Candidoni RC 20 416 135100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Lamezia Terme (70714 inhabitants)
45 Km SW of Catanzaro (90612 inhabitants)
70 Km S of Cosenza (67546 inhabitants)
76 Km NE of Messina (238439 inhabitants)
78 Km NE of Reggio di Calabria (183035 inhabitants)
94 Km SW of Crotone (62178 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 		Md 2.5
ML-VAX 2.4 		1997-08-12
10:33:10		 38.666 16.185 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 275379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-08-12 10:33:10 ± 0.352
Latitude 38.6660 ± 0.0431
Longitude 16.1850 ± 0.0587
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 275379

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 6994.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.00680
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 275379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:20:11

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 275379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ATN.Z. 1997-08-12T10:33:35.90 10.0 undecidable manual SG 228 0.7548 -1.48 0.1
--.SC9.Z. 1997-08-12T10:33:30.52 10.0 undecidable manual SG 222 0.5439 0.7 0.6
--.SOI.Z. 1997-08-12T10:33:30.29 10.0 undecidable manual SG 189 0.5883 -1.18 0.2
--.ATN.Z. 1997-08-12T10:33:25.11 10.0 undecidable manual PG 228 0.7548 -0.34 1.7
--.SOI.Z. 1997-08-12T10:33:23.10 10.0 undecidable manual PG 189 0.5883 0.6 1.5
--.SC9.Z. 1997-08-12T10:33:22.37 10.0 undecidable manual PG 222 0.5439 0.82 1.2
--.GRI.Z. 1997-08-12T10:33:20.16 10.0 undecidable manual SG 49 0.2331 0.26 0.8
--.GRI.Z. 1997-08-12T10:33:15.41 10.0 undecidable manual PG 49 0.2331 -0.41 1.9
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