Earthquake with magnitude of Md 2.0 on date 31-03-1988 and time 09:53:21 (UTC) in region 5 km SW Sarsina (FC)

A magnitude Md 2.0 earthquake occured in region: 5 km SW Sarsina (FC), on

  • 31-03-1988 09:53:21 (UTC)
  • 31-03-1988 11:53:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8970, 12.0910 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
Sarsina FC 5 3446 3446
Bagno di Romagna FC 10 6026 9472
Sant'Agata Feltria RN 10 2151 11623
Mercato Saraceno FC 11 6886 18509
Casteldelci RN 13 407 18916
Verghereto FC 13 1907 20823
Santa Sofia FC 16 4136 24959
Talamello RN 16 1104 26063
Novafeltria RN 16 7164 33227
Pennabilli RN 17 2869 36096
Civitella di Romagna FC 17 3786 39882
Maiolo RN 18 848 40730
Galeata FC 18 2516 43246

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Cesena (96758 inhabitants)
37 Km S of Forlì (117913 inhabitants)
42 Km W of Rimini (147750 inhabitants)
46 Km SE of Faenza (58541 inhabitants)
51 Km NE of Arezzo (99543 inhabitants)
59 Km S of Ravenna (159116 inhabitants)
59 Km SE of Imola (69797 inhabitants)
66 Km W of Pesaro (94582 inhabitants)
68 Km E of Firenze (382808 inhabitants)
75 Km E of Scandicci (50609 inhabitants)
75 Km W of Fano (60888 inhabitants)
80 Km E of Prato (191150 inhabitants)
89 Km NE of Siena (53903 inhabitants)
89 Km SE of Bologna (386663 inhabitants)
91 Km N of Perugia (166134 inhabitants)
94 Km E of Pistoia (90315 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 2.0 1988-03-31
09:53:21
43.897 12.091 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 65459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-03-31 09:53:21 ± 0.781
Latitude 43.8970 ± 0.0230
Longitude 12.0910 ± 0.0416
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 65459

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) 4205.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 282
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00259
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 65459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:02:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRE.Z. 1988-03-31T09:53:32.47 10.0 undecidable manual SG 199 0.2886 -0.43 0.6
--.PGD.Z. 1988-03-31T09:53:32.50 10.0 undecidable manual SG 265 0.2553 0.66 0.4
--.CRE.Z. 1988-03-31T09:53:28.44 10.0 undecidable manual PG 199 0.2886 0.4 1.6
--.SS9.Z. 1988-03-31T09:53:28.32 10.0 undecidable manual SG 277 0.1665 0 0.9
--.PGD.Z. 1988-03-31T09:53:26.50 10.0 undecidable manual PG 265 0.2553 -0.93 0.5
--.SS9.Z. 1988-03-31T09:53:25.65 10.0 undecidable manual PG 277 0.1665 0.25 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