Earthquake with magnitude of Md 2.2 on date 07-08-1987 and time 14:45:39 (Italy) in region 2 km E Rimini (RN)

A magnitude Md 2.2 earthquake occured in region: 2 km E Rimini (RN), on

  • 07-08-1987 12:45:39 (UTC)
  • 07-08-1987 14:45:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0590, 12.5860 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
Rimini RN 2 147750 147750
Riccione RN 9 34965 182715
Coriano RN 11 10502 193217
Santarcangelo di Romagna RN 11 22089 215306
Misano Adriatico RN 13 13014 228320
Bellaria-Igea Marina RN 14 19519 247839
San Clemente RN 14 5577 253416
San Mauro Pascoli FC 15 11690 265106
Savignano sul Rubicone FC 15 17766 282872
Verucchio RN 16 10078 292950
Montescudo - Monte Colombo RN 16 6779 299729
Cattolica RN 17 17125 316854
San Giovanni in Marignano RN 17 9417 326271
Morciano di Romagna RN 17 7045 333316
Gatteo FC 17 9068 342384
Gemmano RN 17 1158 343542
Gabicce Mare PU 17 5781 349323
Poggio Torriana RN 18 5135 354458
Borghi FC 19 2843 357301
Montefiore Conca RN 19 2269 359570
Sassofeltrio PU 19 1388 360958
Gradara PU 20 4835 365793

Municipalities with at least 50000 inhabitants

An earthquake occurred to
2 Km E of Rimini (147750 inhabitants)
29 Km E of Cesena (96758 inhabitants)
31 Km NW of Pesaro (94582 inhabitants)
42 Km NW of Fano (60888 inhabitants)
47 Km E of Forlì (117913 inhabitants)
50 Km SE of Ravenna (159116 inhabitants)
61 Km E of Faenza (58541 inhabitants)
77 Km E of Imola (69797 inhabitants)
87 Km NE of Arezzo (99543 inhabitants)
90 Km NW of Ancona (100861 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 2.2
ML-VAX 1.6
1987-08-07
12:45:39
44.059 12.586 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 53529
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-08-07 12:45:39 ± 0.561
Latitude 44.0590 ± 0.0296
Longitude 12.5860 ± 0.0242
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 53529

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) 3815.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 261
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00550
Epicentral distance of station farthest from the epicenter (degree) 0.00890
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 53529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:51:37

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 53529
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
--.ASS.Z. 1987-08-07T12:46:13.47 10.0 undecidable manual SG 177 0.9879 0.02 0.6
--.ARV.Z. 1987-08-07T12:46:02.51 10.0 undecidable manual SG 155 0.6105 1.28 0
--.PGD.Z. 1987-08-07T12:46:02.63 10.0 undecidable manual SG 254 0.6438 0.36 0.5
--.CRE.Z. 1987-08-07T12:46:01.82 10.0 undecidable manual SG 226 0.6327 0.01 0.7
--.ASS.Z. 1987-08-07T12:45:58.54 10.0 negative manual PG 177 0.9879 -0.58 1.3
--.ARV.Z. 1987-08-07T12:45:52.10 10.0 undecidable manual PG 155 0.6105 -0.05 1.7
--.CRE.Z. 1987-08-07T12:45:52.35 10.0 undecidable manual PG 226 0.6327 -0.05 1.7
--.PGD.Z. 1987-08-07T12:45:52.77 10.0 undecidable manual PG 254 0.6438 0.11 1.6
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