diff --git a/moto/s3/models.py b/moto/s3/models.py
index 0983631eb..99ca233ed 100644
--- a/moto/s3/models.py
+++ b/moto/s3/models.py
@@ -2048,6 +2048,7 @@ class S3Backend(BaseBackend, CloudWatchMetricProvider):
         lock_legal_status: Optional[str] = None,
         lock_until: Optional[str] = None,
         checksum_value: Optional[str] = None,
+        request_method: Optional[str] = "PUT",
     ) -> FakeKey:
         if storage is not None and storage not in STORAGE_CLASS:
             raise InvalidStorageClass(storage=storage)
@@ -2096,9 +2097,18 @@ class S3Backend(BaseBackend, CloudWatchMetricProvider):
             keys = [new_key]
         bucket.keys.setlist(key_name, keys)
 
+        # Send event notification
+        if request_method == "POST":
+            notify_event_name = (
+                notifications.S3NotificationEvent.OBJECT_CREATED_POST_EVENT
+            )
+        else:  # PUT request
+            notify_event_name = (
+                notifications.S3NotificationEvent.OBJECT_CREATED_PUT_EVENT
+            )
         notifications.send_event(
             self.account_id,
-            notifications.S3NotificationEvent.OBJECT_CREATED_PUT_EVENT,
+            notify_event_name,
             bucket,
             new_key,
         )
diff --git a/moto/s3/responses.py b/moto/s3/responses.py
index 575b5bcc7..65c310814 100644
--- a/moto/s3/responses.py
+++ b/moto/s3/responses.py
@@ -1116,7 +1116,9 @@ class S3Response(BaseResponse):
         else:
             status_code = 204
 
-        new_key = self.backend.put_object(bucket_name, key, f)
+        new_key = self.backend.put_object(
+            bucket_name, key, f, request_method=request.method
+        )
 
         if self.querystring.get("acl"):
             acl = get_canned_acl(self.querystring["acl"][0])
diff --git a/tests/test_s3/test_s3_eventbridge_integration.py b/tests/test_s3/test_s3_eventbridge_integration.py
index 40854e6a5..374631ff4 100644
--- a/tests/test_s3/test_s3_eventbridge_integration.py
+++ b/tests/test_s3/test_s3_eventbridge_integration.py
@@ -1,16 +1,21 @@
 import json
+from io import BytesIO
+from unittest import SkipTest
 from uuid import uuid4
 
 import boto3
+import requests
 
-from moto import mock_aws
+from moto import mock_aws, settings
 from moto.core import DEFAULT_ACCOUNT_ID as ACCOUNT_ID
+from tests.test_s3.test_s3_multipart import reduced_min_part_size
 
 REGION_NAME = "us-east-1"
+REDUCED_PART_SIZE = 256
 
 
 @mock_aws
-def test_pub_object_notification():
+def test_put_object_notification_ObjectCreated_PUT():
     s3_res = boto3.resource("s3", region_name=REGION_NAME)
     s3_client = boto3.client("s3", region_name=REGION_NAME)
     events_client = boto3.client("events", region_name=REGION_NAME)
@@ -57,3 +62,67 @@ def test_pub_object_notification():
     assert event_message["region"] == REGION_NAME
     assert event_message["detail"]["bucket"]["name"] == bucket_name
     assert event_message["detail"]["reason"] == "ObjectCreated"
+
+
+@mock_aws
+@reduced_min_part_size
+def test_put_object_notification_ObjectCreated_POST():
+    if not settings.TEST_DECORATOR_MODE:
+        raise SkipTest(("Doesn't quite work right with the Proxy or Server"))
+
+    s3_res = boto3.resource("s3", region_name=REGION_NAME)
+    s3_client = boto3.client("s3", region_name=REGION_NAME)
+    events_client = boto3.client("events", region_name=REGION_NAME)
+    logs_client = boto3.client("logs", region_name=REGION_NAME)
+
+    rule_name = "test-rule"
+    events_client.put_rule(
+        Name=rule_name, EventPattern=json.dumps({"account": [ACCOUNT_ID]})
+    )
+    log_group_name = "/test-group"
+    logs_client.create_log_group(logGroupName=log_group_name)
+    events_client.put_targets(
+        Rule=rule_name,
+        Targets=[
+            {
+                "Id": "test",
+                "Arn": f"arn:aws:logs:{REGION_NAME}:{ACCOUNT_ID}:log-group:{log_group_name}",
+            }
+        ],
+    )
+
+    # Create S3 bucket
+    bucket_name = str(uuid4())
+    s3_res.create_bucket(Bucket=bucket_name)
+
+    # Put bucket notification event bridge
+    s3_client.put_bucket_notification_configuration(
+        Bucket=bucket_name,
+        NotificationConfiguration={"EventBridgeConfiguration": {}},
+    )
+
+    ###
+    # multipart/formdata POST request (this request is processed in S3Response._bucket_response_post)
+    ###
+    content = b"Hello, this is a sample content for the multipart upload."
+    object_key = "test-key"
+
+    _ = requests.post(
+        f"https://{bucket_name}.s3.amazonaws.com/",
+        data={"key": object_key},
+        files={"file": ("tmp.txt", BytesIO(content))},
+    )
+
+    events = sorted(
+        logs_client.filter_log_events(logGroupName=log_group_name)["events"],
+        key=lambda item: item["eventId"],
+    )
+    assert len(events) == 1
+    event_message = json.loads(events[0]["message"])
+    assert event_message["detail-type"] == "Object Created"
+    assert event_message["source"] == "aws.s3"
+    assert event_message["account"] == ACCOUNT_ID
+    assert event_message["region"] == REGION_NAME
+    assert event_message["detail"]["bucket"]["name"] == bucket_name
+    assert event_message["detail"]["object"]["key"] == object_key
+    assert event_message["detail"]["reason"] == "ObjectCreated"