Earthquake with magnitude of Md 2.3 on date 20-01-1988 and time 12:52:30 (Italy) in region 8 km E Monterenzio (BO)

A magnitude Md 2.3 earthquake occured in region: 8 km E Monterenzio (BO), on

  • 20-01-1988 11:52:30 (UTC)
  • 20-01-1988 12:52:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3530, 11.5000 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
Monterenzio BO 8 6035 6035
Castel San Pietro Terme BO 9 20811 26846
Dozza BO 10 6652 33498
Ozzano dell'Emilia BO 10 13596 47094
Borgo Tossignano BO 11 3288 50382
Casalfiumanese BO 11 3438 53820
Fontanelice BO 12 1943 55763
Pianoro BO 13 17460 73223
San Lazzaro di Savena BO 15 32065 105288
Castel del Rio BO 16 1246 106534
Castel Guelfo di Bologna BO 17 4455 110989
Loiano BO 17 4294 115283
Imola BO 17 69797 185080
Casola Valsenio RA 17 2617 187697
Castenaso BO 18 14925 202622
Medicina BO 18 16739 219361
Riolo Terme RA 20 5720 225081
Monzuno BO 20 6328 231409

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km W of Imola (69797 inhabitants)
20 Km SE of Bologna (386663 inhabitants)
31 Km W of Faenza (58541 inhabitants)
46 Km W of Forlì (117913 inhabitants)
55 Km S of Ferrara (133155 inhabitants)
56 Km SE of Modena (184973 inhabitants)
56 Km W of Ravenna (159116 inhabitants)
62 Km NE of Prato (191150 inhabitants)
64 Km W of Cesena (96758 inhabitants)
66 Km NE of Pistoia (90315 inhabitants)
68 Km NE of Firenze (382808 inhabitants)
68 Km SE of Carpi (70699 inhabitants)
71 Km NE of Scandicci (50609 inhabitants)
79 Km E of Reggio nell'Emilia (171345 inhabitants)
83 Km S of Rovigo (51867 inhabitants)
91 Km W of Rimini (147750 inhabitants)
98 Km NE of Lucca (89046 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 2.3 1988-01-20
11:52:30
44.353 11.5 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 61419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-01-20 11:52:30 ± 0.625
Latitude 44.3530 ± 0.0322
Longitude 11.5000 ± 0.0307
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 61419

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) 4332.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 266
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00445
Epicentral distance of station farthest from the epicenter (degree) 0.00842
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 61419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:58:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PII.Z. 1988-01-20T11:53:03.00 10.0 undecidable manual SG 228 0.9324 -0.05 0.7
--.BDI.Z. 1988-01-20T11:52:56.50 10.0 undecidable manual SG 246 0.6993 0.97 0.1
--.PII.Z. 1988-01-20T11:52:48.87 10.0 undecidable manual PG 228 0.9324 -0.57 0.9
--.PGD.Z. 1988-01-20T11:52:48.47 10.0 undecidable manual SG 161 0.4995 -0.43 0.6
--.BDI.Z. 1988-01-20T11:52:44.73 10.0 undecidable manual PG 246 0.6993 -0.37 1.6
--.MME.Z. 1988-01-20T11:52:43.16 10.0 undecidable manual PG 254 0.5883 0.19 1.9
--.PGD.Z. 1988-01-20T11:52:41.77 10.0 undecidable manual PG 161 0.4995 0.5 1.2
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