Earthquake with magnitude of Md 2.1 on date 04-02-1988 and time 06:59:53 (Italy) in region 5 km SW Marzabotto (BO)

A magnitude Md 2.1 earthquake occured in region: 5 km SW Marzabotto (BO), on

  • 04-02-1988 05:59:53 (UTC)
  • 04-02-1988 06:59:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3030, 11.1860 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Marzabotto BO 5 6779 6779
Grizzana Morandi BO 6 3916 10695
Vergato BO 6 7639 18334
Monzuno BO 7 6328 24662
San Benedetto Val di Sambro BO 10 4315 28977
Sasso Marconi BO 11 14735 43712
Loiano BO 11 4294 48006
Monghidoro BO 14 3749 51755
Castel d'Aiano BO 15 1906 53661
Pianoro BO 16 17460 71121
Zocca MO 16 4719 75840
Camugnano BO 17 1885 77725
Monte San Pietro BO 17 10982 88707
Monterenzio BO 18 6035 94742
Castiglione dei Pepoli BO 18 5648 100390
Castel di Casio BO 20 3448 103838
Montese MO 20 3353 107191

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Bologna (386663 inhabitants)
43 Km W of Imola (69797 inhabitants)
43 Km SE of Modena (184973 inhabitants)
46 Km NE of Pistoia (90315 inhabitants)
47 Km N of Prato (191150 inhabitants)
56 Km W of Faenza (58541 inhabitants)
59 Km SE of Carpi (70699 inhabitants)
60 Km N of Firenze (382808 inhabitants)
61 Km N of Scandicci (50609 inhabitants)
62 Km SE of Reggio nell'Emilia (171345 inhabitants)
69 Km SW of Ferrara (133155 inhabitants)
69 Km W of Forlì (117913 inhabitants)
75 Km NE of Lucca (89046 inhabitants)
82 Km W of Ravenna (159116 inhabitants)
86 Km W of Cesena (96758 inhabitants)
88 Km SE of Parma (192836 inhabitants)
88 Km E of Massa (69479 inhabitants)
89 Km NE of Viareggio (62467 inhabitants)
90 Km E of Carrara (63133 inhabitants)
91 Km NE of Pisa (89158 inhabitants)
98 Km SW of Rovigo (51867 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 2.1
ML-VAX 1.8
1988-02-04
05:59:53
44.303 11.186 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 62389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-02-04 05:59:53 ± 0.524
Latitude 44.3030 ± 0.0312
Longitude 11.1860 ± 0.0569
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 62389

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) 5700.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 209
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00437
Epicentral distance of station farthest from the epicenter (degree) 0.01595
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 62389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:59:18

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 62389
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
--.BOB.Z. 1988-02-04T06:00:37.00 10.0 undecidable manual SN 290 1.3209 0.57 0.3
--.CTI.Z. 1988-02-04T06:00:23.97 10.0 undecidable manual PN 10 1.7649 -0.37 1
--.BOB.Z. 1988-02-04T06:00:18.59 10.0 undecidable manual PN 290 1.3209 0.46 1.1
--.BDI.Z. 1988-02-04T06:00:10.90 10.0 undecidable manual SG 240 0.4884 -0.7 0.3
--.PII.Z. 1988-02-04T06:00:09.50 10.0 undecidable manual PG 219 0.7437 0.78 0.6
--.BDI.Z. 1988-02-04T06:00:03.39 10.0 negative manual PG 240 0.4884 -0.41 2.7
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