Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 30-10-1987 and time 02:52:00 (UTC) in region 6 km SE Poggio Rusco (MN)

A magnitude Md 2.5 earthquake occured in region: 6 km SE Poggio Rusco (MN), on

  • 30-10-1987 02:52:00 (UTC)
  • 30-10-1987 03:52:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.9420, 11.1800 at 5 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
Poggio Rusco MN 6 6625 6625
Magnacavallo MN 7 1561 8186
Villa Poma MN 8 2023 10209
San Giovanni del Dosso MN 8 1248 11457
Schivenoglia MN 10 1203 12660
Mirandola MO 11 23875 36535
Carbonara di Po MN 11 1297 37832
Pieve di Coriano MN 12 1035 38867
San Felice sul Panaro MO 12 10900 49767
Sermide MN 12 6189 55956
San Giacomo delle Segnate MN 12 1639 57595
Borgofranco sul Po MN 12 784 58379
Castelnovo Bariano RO 13 2762 61141
Medolla MO 13 6308 67449
Castelmassa RO 13 4252 71701
Melara RO 14 1803 73504
Revere MN 14 2521 76025
Felonica MN 14 1359 77384
Bergantino RO 15 2565 79949
Ostiglia MN 15 6818 86767
Calto RO 15 743 87510
Quingentole MN 15 1203 88713
Finale Emilia MO 15 15699 104412
San Possidonio MO 15 3619 108031
Concordia sulla Secchia MO 16 8641 116672
Serravalle a Po MN 16 1541 118213
Cavezzo MO 16 7026 125239
Ceneselli RO 17 1719 126958
Camposanto MO 17 3201 130159
Quistello MN 17 5595 135754
Sustinente MN 19 2109 137863
Bondeno FE 20 14655 152518

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Carpi (70699 inhabitants)
37 Km W of Ferrara (133155 inhabitants)
38 Km NE of Modena (184973 inhabitants)
50 Km W of Rovigo (51867 inhabitants)
51 Km NE of Reggio nell'Emilia (171345 inhabitants)
51 Km N of Bologna (386663 inhabitants)
57 Km S of Verona (258765 inhabitants)
69 Km E of Parma (192836 inhabitants)
73 Km SW of Vicenza (112953 inhabitants)
75 Km SW of Padova (210401 inhabitants)
78 Km NW of Imola (69797 inhabitants)
92 Km NW of Faenza (58541 inhabitants)
93 Km E of Cremona (71901 inhabitants)
100 Km NW of Ravenna (159116 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 1.9 		1987-10-30
02:52:00		 44.942 11.18 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 57929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-10-30 02:52:00 ± 0.372
Latitude 44.9420 ± 0.0230
Longitude 11.1800 ± 0.0441
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 57929

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) 4311.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00720
Epicentral distance of station farthest from the epicenter (degree) 0.02016
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 57929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:55:30

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 57929
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
--.FVI.Z. 1987-10-30T02:53:00.37 10.0 undecidable manual SN 33 1.9869 0.23 0.7
--.BOB.Z. 1987-10-30T02:52:43.00 10.0 undecidable manual SN 262 1.2321 0.77 0.7
--.CTI.Z. 1987-10-30T02:52:38.86 10.0 undecidable manual SN 15 1.1544 -1.32 0.4
--.RBL.Z. 1987-10-30T02:52:38.60 10.0 undecidable manual PN 46 2.2422 0.08 1.6
--.FVI.Z. 1987-10-30T02:52:36.84 10.0 undecidable manual PN 33 1.9869 1.73 0.5
--.BDI.Z. 1987-10-30T02:52:35.15 10.0 undecidable manual SG 205 0.9657 0.16 0.9
--.SAL.Z. 1987-10-30T02:52:28.38 10.0 undecidable manual SG 325 0.7992 -1.36 0.4
--.BOB.Z. 1987-10-30T02:52:25.20 10.0 undecidable manual PN 262 1.2321 0.43 2
--.CTI.Z. 1987-10-30T02:52:22.00 10.0 undecidable manual PN 15 1.1544 -1.59 0.7
--.BDI.Z. 1987-10-30T02:52:19.55 10.0 undecidable manual PG 205 0.9657 -1.04 1.4
--.SAL.Z. 1987-10-30T02:52:18.37 10.0 undecidable manual PG 325 0.7992 0.81 1.7
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