Earthquake with magnitude of Md 2.3 on date 30-01-1988 and time 16:41:32 (Italy) in region 7 km E Civitella di Romagna (FC)

A magnitude Md 2.3 earthquake occured in region: 7 km E Civitella di Romagna (FC), on

  • 30-01-1988 15:41:32 (UTC)
  • 30-01-1988 16:41:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0020, 12.0220 at 24 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
Civitella di Romagna FC 7 3786 3786
Galeata FC 9 2516 6302
Santa Sofia FC 11 4136 10438
Predappio FC 12 6346 16784
Sarsina FC 13 3446 20230
Meldola FC 14 9970 30200
Mercato Saraceno FC 15 6886 37086
Rocca San Casciano FC 16 1910 38996
Bagno di Romagna FC 16 6026 45022
Dovadola FC 17 1653 46675
Bertinoro FC 19 11059 57734
Portico e San Benedetto FC 19 756 58490
Premilcuore FC 20 799 59289

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Cesena (96758 inhabitants)
25 Km S of Forlì (117913 inhabitants)
34 Km SE of Faenza (58541 inhabitants)
44 Km W of Rimini (147750 inhabitants)
46 Km SE of Imola (69797 inhabitants)
48 Km SW of Ravenna (159116 inhabitants)
61 Km N of Arezzo (99543 inhabitants)
67 Km E of Firenze (382808 inhabitants)
72 Km W of Pesaro (94582 inhabitants)
73 Km E of Scandicci (50609 inhabitants)
75 Km E of Prato (191150 inhabitants)
77 Km SE of Bologna (386663 inhabitants)
82 Km W of Fano (60888 inhabitants)
89 Km E of Pistoia (90315 inhabitants)
94 Km NE of Siena (53903 inhabitants)
98 Km SE of Ferrara (133155 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
ML-VAX 1.5
1988-01-30
15:41:32
44.002 12.022 23 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 61969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-01-30 15:41:32 ± 0.508
Latitude 44.0020 ± 0.0279
Longitude 12.0220 ± 0.0501
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 61969

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) 5062.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 265
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00866
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 61969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:58:57

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 61969
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
--.MME.Z. 1988-01-30T15:41:50.21 10.0 undecidable manual PN 281 0.9657 0.25 0.7
--.CRE.Z. 1988-01-30T15:41:47.58 10.0 undecidable manual SG 187 0.3774 0.31 0.5
--.PGD.Z. 1988-01-30T15:41:43.35 10.0 undecidable manual SG 239 0.2442 -0.13 0.6
--.SS9.Z. 1988-01-30T15:41:41.89 10.0 undecidable manual SG 236 0.1443 0.83 0.1
--.CRE.Z. 1988-01-30T15:41:40.74 10.0 undecidable manual PG 187 0.3774 -0.13 1.5
--.SS9.Z. 1988-01-30T15:41:37.26 10.0 positive manual PG 236 0.1443 -0.02 3.3
--.PGD.Z. 1988-01-30T15:41:37.97 10.0 undecidable manual PG 239 0.2442 -0.71 0.3
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