Earthquake with magnitude of Md 2.4 on date 02-04-1987 and time 20:15:14 (UTC) in region 7 km SE Farini (PC)

A magnitude Md 2.4 earthquake occured in region: 7 km SE Farini (PC), on

  • 02-04-1987 20:15:14 (UTC)
  • 02-04-1987 22:15:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6600, 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Farini PC 8 1290 1290
Bardi PR 9 2227 3517
Morfasso PC 9 1024 4541
Ferriere PC 10 1294 5835
Bettola PC 13 2828 8663
Bore PR 15 749 9412
Bedonia PR 17 3482 12894
Varsi PR 17 1230 14124
Compiano PR 18 1112 15236
Santo Stefano d'Aveto GE 19 1126 16362
Coli PC 19 879 17241
Tornolo PR 19 1010 18251

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km S of Piacenza (102191 inhabitants)
58 Km W of Parma (192836 inhabitants)
61 Km SW of Cremona (71901 inhabitants)
62 Km E of Genova (586655 inhabitants)
63 Km N of La Spezia (93959 inhabitants)
69 Km SE of Pavia (72576 inhabitants)
75 Km NW of Carrara (63133 inhabitants)
80 Km W of Reggio nell'Emilia (171345 inhabitants)
80 Km NW of Massa (69479 inhabitants)
85 Km E of Alessandria (93943 inhabitants)
95 Km SE of Vigevano (63310 inhabitants)
96 Km SE of Milano (1345851 inhabitants)
99 Km E of Savona (61345 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 2.4
M 2.8
1987-04-02
20:15:14
44.66 9.627 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 44079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-04-02 20:15:14 ± 0.746
Latitude 44.6600 ± 0.0347
Longitude 9.6270 ± 0.0479
Depth (km) 10 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 44079

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) 5401.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01619
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 44079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:43:34

M:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 44079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SOO.Z. 1987-04-02T20:16:08.50 10.0 undecidable manual SN 265 1.7982 0.55 0.6
--.IMP.Z. 1987-04-02T20:15:59.50 10.0 undecidable manual SN 239 1.443 0.09 0.7
--.FIN.Z. 1987-04-02T20:15:50.50 10.0 undecidable manual SN 246 1.11 -0.89 0.3
--.SOO.Z. 1987-04-02T20:15:47.00 10.0 undecidable manual PN 265 1.7982 1.6 0.3
--.STV.Z. 1987-04-02T20:15:45.00 10.0 undecidable manual PN 256 1.6761 1.19 0.6
--.IMP.Z. 1987-04-02T20:15:40.00 10.0 undecidable manual PN 239 1.443 -0.47 1.3
--.ROB.Z. 1987-04-02T20:15:38.20 10.0 undecidable manual PN 254 1.2987 -0.28 1.6
--.FIN.Z. 1987-04-02T20:15:35.20 10.0 undecidable manual PN 246 1.11 -0.63 1.2
--.VEA.Z. 1987-04-02T20:15:24.10 10.0 undecidable manual SG 358 0.222 0.23 0.8
--.CO9.Z. 1987-04-02T20:15:21.50 10.0 undecidable manual SG 310 0.1665 -0.33 0.7
--.CO9.Z. 1987-04-02T20:15:19.00 10.0 undecidable manual PG 310 0.1665 0.23 2.1
--.VEA.Z. 1987-04-02T20:15:19.50 10.0 undecidable manual PG 358 0.222 -0.45 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download